 sj |
||
|
||
BS: Swamp-Cooler to Cool Pool Water???
|
|
|
Subject: BS: Swamp-Cooler to Cool Pool Water??? From: Bobert Date: 21 Jul 13 - 08:41 PM Okay, this one is right up John in Kansas's alley but here it is... I heard on NPR this week the idea of using s swamp cooler to cool swimming pool water... Seems to me you'd need a pretty big one but I don't know... I was thinking about building a smallish one with a 20" fan and small louvered box not much bigger with a small fountain pump to pump water up to the top where it would be dispersed thru a piece of CPVC with holes drilled in it... I donno??? The pool is 20,000 gallons... Anyone have any experience with such a system??? B~ |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: pdq Date: 21 Jul 13 - 08:48 PM A swamp cooler cools the air, not water. I don't think this will work, but I will check out a few articles. |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Bobert Date: 21 Jul 13 - 08:57 PM No, pdq, it will work... The inventor on NPR says he has used it to cool his pool... Problem is that this guy didn't go into details on the specs... B~ |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: pdq Date: 21 Jul 13 - 09:10 PM They do make it but some bad news. A proper unit for a 20,000 gallon pool is $1649. check here Right up your alley would be a "hillbilly special" using plant misters and a small pump. The water must come from the pools and be srayed in the air above it. The molecules that land back in the pool will be cooler that the ones which evaporated. |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Bobert Date: 21 Jul 13 - 09:39 PM I think I'll just wait on John in Kansas... He'll have it figured out... I ain't spendin' no $1600... B~ |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Rapparee Date: 21 Jul 13 - 10:04 PM Put in a submersible pump (and submersible wiring!). Run the water in the pool through the pump up into the air, like a fountain. That will cool the water as well as aerate it. Or you can install one that simply keeps the water circulating, so that the heated surface water is brought down and the cooler bottom water is brought up in a regular cycle. One really cheap way of doing the former is the dive to the bottom, fill your mouth with water, swim to the surface and spit it into the air. If the P-vine asks what you think you're doing, you can tell her you're cooling the pool for her. |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Bobert Date: 21 Jul 13 - 10:15 PM No, Rap.... I'll wait on John in Kansas... He'll have the bright ideas... B~ |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Rapparee Date: 21 Jul 13 - 10:56 PM Ice. Buy a lot of ice. |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: JohnInKansas Date: 21 Jul 13 - 11:10 PM A swamp cooler circulates water and evaporates some of it to cool some water. It then blows air through the cooler water to cool the air. You won't benefit much by going through all the steps, and will get at least as good - probably more efficient - results by just spraying some water up into the air and letting it fall back into the pool. "Cascading" the water back into the pool, and blowing some air through it to increase the amount of evaporation (and cooling) might get a little more cooling out of less pumping. One of the side benefits of a "decorative waterfall" in any kind of pool is that it can provide some cooling, but also that it stirs the water so that temperature differences are minimized. In a deep enough pool, without too much circulation, the water at the bottom in the deepest part will tend toward the temp at which water density is the maximum (about 34 F = 1.1 C). Pumping this cooler water up and spraying (or dribbling) it back on top may help to even out the temp so the hot upper layers (where you swim?) get mixed in and don't "feel as hot." In a typical swimming pool, the circulation pumps you need to maintain chlorination and filtering likely will produce enough circulation to eliminate all but minor temp gradients. If you have a "skimmer" type filter system, that sucks off the top layers it might be more likely that you have cooler water under the diving board that would help make the pool seem cooler with just a little more - or different - circulation. If your pool is "ye ole swimmin' hole" you may have cooler water in the bottom of a deep spot that you could suck up and dribble down a waterfall to get a fair amount of actual cooling. (And the crawdads will appreciate a little aeration of that bottom water.) A problem with evaporative cooling of large amounts of water is that you have to evaporate lots of water to significantly cool a little of it, so replenishment and treatment of the incoming water might cost more than putting a mechanical refrigeration unit in line with the filter pump. As a SWAG (not expected to be too accurate) evaporating a gallon of water might cool a gallon by the difference between ambient air temp and the current dew point. (That probably overestimates what you can get.) Each gallon of water made that much cooler will bring your 20,000 gallons down by 1/20,000 of that many degrees. Althugh contact with ambient air may produce a lot of heating of the pool water, it's likely that most of the load is from solar insolation. Shading the pool, especially during peak sun periods, might be as helpful as trying to cool it, if you can figure out a clever way to do it. Circulation of the water offers some prospects of benefits - and a nice waterfall could be pretty enough to take your mind off the heat. John |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: GUEST Date: 21 Jul 13 - 11:24 PM "CPVC with holes drilled in it..." Why CPVC as opposed to regular PVC? |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: JohnInKansas Date: 22 Jul 13 - 12:13 AM CPVC pipe is probably more generally used now for residential and light industrial plumbing than the plain PVC. Addition of the chlorination is a "post production" process that allows tailoring of properties for a more consistent product and/or for improvement of specific properties for a particular use. Special properties can be achieved, although the ordinary stuff at the lumber yard has consistent, if more ordinary, properties suitable for most plumbing uses. For an outdoor plumbing use, as implied for a pool, CPVC usually will have a higher softening point than PVC's ~105F useful limit. Without flow to cool it internally, plumbing laying in the sun can reach much higher temperatures and both pipe life and safety could be compromised. (I've measured "surface temps" of 195F on "things laying in the sun" fairly frequently, and some much higher on special occasions.) CPVC is commonly available, and some consider it easier to work with than PVC. A "better adhesive" is recommended, but it's not significantly more expensive than for PVC. In my area, CPVC is preferred for most new residential plumbing, and for major/significant remodelling, even if the pipes won't see outside environmental effects. Either is still a choice you can make if the whim grabs you. John |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Rapparee Date: 22 Jul 13 - 01:07 AM Wadda I tell ya, Bobert? |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: JohnInKansas Date: 22 Jul 13 - 06:45 AM Quick calculations with no guarantees about accuracy: 1 Btu = energy that must be added or removed to change temperature of one pound of water by one degree Fahrenheit. 20,000 gallons of water = (approx) 1,700,000 lb. At an arbitrarily chosen 90 F water temperature, and assuming that the surface water is at about the same temperature as the adjacent air, the partial pressure of water vapor evaporated from the surface by an efficient process will be approximately 1.5 in Hg and the "latent heat of fusion" taken from the water and absorbed into the vapor will be on the order of 444 Btu/lb, meaning that evaporation of 1 lb of water at 90 F will remove about 400 Btu from the water left in the pool. (Evaporation of one gallon of water might remove 34,000 Btu, if the evaporation is "efficient.") Removal of the of heat carried off by evaporation of one pound of water will cool the 1,700,000 lb of water in the pool by 0.000235 degrees F. To have 1,700,000 lb of water left in the pool all cooled by 1F would require evaporation of about 4,250 pounds of water, or approximately 500 gallons – assuming that there is no other heat exchange occuring. If the pool seems uncomfortably warm, it is likely that it is being heated at the surface mainly by solar insolation. If you can find an average insolation rate (most likely watts/sq meter) and multiply by the surface area of the pool you should be able to estimate how much water gets boiled out of the pool just to maintain the equilibrium temperature that you see without additional cooling. You might want to add that water loss rate to what you'd add to evaporate enough to get the cooling you think you want. To keep your cooler water at the lower temperature, you would need to assure that you continue to evaporate enough water at a rate that compensates for the incoming solar heat, since at a lower temp the natural evaporation will be reduced. In "artificial" pools, it's quite common for the top layers of the water to be significantly warmer than the overall average temperature of the pool, and since you swim mostly at the surface it feels like the whole pool is hot. The "layer" of significantly warmer water near the surface often is only one or two feet thick, with cooler water below it. It generally takes 15 to 30 ft depth to get the "max density 34F bottom water," but even at 6 ft you may see as much as 10F lower temp than at the surface - depending on what circulation you have installed. A sufficiently clever person might be able to "survey" the actual temperatures at different depths to determine an "average pool water temperature" and if the average is much lower than the surface layer temp, simply circulating (bottom to top) would make using the pool more comfortable. Drawing water from the bottom of the deepest part of the pool, and spraying or just squirting it onto the top water is likely to be effective, and evaporation from the "squirter" (or a waterfall) may provide some additional effect. The other method is to just add more kids (and throw in a couple of dogs and a goat or two) to stir things up. I can't see much prospect for actually gaining much by simulating a "swamp cooler," but a healthy spray/fountain to move the water around some is fairly likely to help, and you should get about as much evaporative cooling as with a fancier setup. For the water volume indicated, you might want something like a 30 gpm pump(?), but it's hard to make much of an estimate without knowing the geometry of the pool, and something much smaller might work as well. Just don't get a pump so big it knocks mama on her a**. John |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: JohnInKansas Date: 22 Jul 13 - 06:47 AM OOPS: 20,000 gallons = ~170,000 lb. You do the other obvious corrections. John |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Bobert Date: 22 Jul 13 - 08:47 AM We have these coin operated ice machines here in NC... Twice the ice for half the price... You bring your own cooler and a handful of quarters or $1 bills... I'm thinking that might be the most economical... But thanks, John in Kansas, for the info... B~ |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: GUEST,leeneia Date: 22 Jul 13 - 10:11 AM I have heard that in Florida there is quite an industry which grows house plants to sell. Most houseplants live naturally in the shade of the huge trees of the rain forest, so in Florida they build 'slat houses' to provide the needed partial shade. How about putting a slat house of some kind over your pool to keep the sun off, rather than trying to cool the water once the sun has heated it? You could add plastic leaves and flowers to the slats to provide tropical ambiance. (Real vines would be nicer, but they would drop leaves and bugs into the water.) |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Bobert Date: 22 Jul 13 - 10:32 AM It's a little too big for that, leeneia... If I had the finances and time I'd use those round tubing pieces that they make greenhouses our of and enclose it so I could keep the pool open all year round and swim in the winter... Maybe down the road... B~ |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: GUEST,Chongo Chimp Date: 22 Jul 13 - 11:05 AM Beats me why in hell anyone would want to cool a swimmin' pool in the first place, Bobertz, but I know yer a strange character, so...here's my idea fer what it's worth. You gotta get a real big freezer, see? Maybe 8 or 10 real big freezers. Inside them freezers you put a lotta ice cube trays, but large size ice cubes, say where you get ice cubes that are about 12 x 12 inches each. Every mornin' you go out with the wheelbarrow and dump a whole buncha them big ice cubes in the pool...wait a half hour. Presto! The pool is cool. You can send me a check in the mail for comin' up with this great idea. I figger $25 bucks is fair pay. - Chongo |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Ebbie Date: 22 Jul 13 - 11:41 AM Wow, scary- for a minute there I thought that Little Hawk had zeroed in on *my* brilliance. But no. What I suggest is utilizing the reverse of a sauna. You sit in an ice shed, see, until you just cannot stand it any longer. Then you come out and dive into your pool. It will feel *real* good. |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: JohnInKansas Date: 22 Jul 13 - 11:45 AM A couple of people in the "comfortable" parts of my town have inflatable pool houses. A double-walled rag inflated to look like a quonset hut covers their entire pool, somewhat similar to some of the carnival caves where they toss the kids in to play in a sea of ping-pong balls. Most of the carny things have a continuously running blower to keep the structure inflated, but the pool-halls (is there a better name?) don't appear to require constant input. No idea what frequency of "maintenance replenishment" of the air is needed, but if the air gets out the hut would just lay on top of the water until you turned the inflator back on. At least one has been visible over the ten-foot high privacy fence for at least 8 or 9 years, which suggests that the things are fairly durable. (The 10 foot fence - 2 feet taller than the norm - also suggests they're people who just must have a little more than the neighbors so the pool house might be a little more comfortablene$$ than we "more ordinaries" might want to buy into.) Depending on your layout, shading out all of the sun might not be necessary. A "shelter belt" of trees (or a fence?) on the east to delay the start of warm-up in the morning might keep the pool from "starting hot" when the noon sun hits and begins the main heating, so that the peak temp wouldn't be quite as warm when you want to go for your dip. For some unknown reason, shading the late afternoon sun seems to have less effect in our area than blocking the morning sun. That may be different where you are(?). A partial overhead cover (maybe the shallow third of the pool?) might be easier, and cheaper, to arrange than trying to cover everything, especially if you do find that the shallows get warmer than the deep stuff. Shade for the parts of the pool that get hottest would probably be most helpful, even if they're shaded only part of the time; but you'd need that temperature distribution survey to tell whether it tells you anything useful for making the plans. If your filter/circulation system is fairly aggressive you might find little in the way of temp differences, but in some pools there are fairly large gradients. John |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Rapparee Date: 22 Jul 13 - 02:48 PM Oh, fer...go get some white tarps, some 8 ft. poles, some rope, and put a sunscreen over the all or part of the thing. You could even do it with the sunscreens slanted, sort of like this: /O\ with the O being the pool, only lengthwise. And I told you about the fountaining idea before. Fer a redneck hillbilly you sure don't lissen good. You been outa them hill too long. Next thing you'll be drinkin' Iron City instead of good beer and eatin' canned barbecue on some fancy "artisan" bread. |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: frogprince Date: 22 Jul 13 - 04:13 PM I can't figure why you want to swim in a swamp anyhow; swamp water is nasty stuff. |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Little Hawk Date: 22 Jul 13 - 04:19 PM Chongo's been trying to talk some sense into Bobert for years. And he does it out of the goodness of his little simian heart too. (And usually asks for some money in exchange for his sage advice and words of wisdom.) ;-) I wonder how it's going with his advice column?: Dear Chongo Haven't heard much about that lately. |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: JohnInKansas Date: 22 Jul 13 - 06:20 PM Water actually is a pretty good absorber for solar heat, so to reduce the amount of heat absorbed all that's really needed is to provide a more reflective surface on the water to bounce the heat back at the sky. All that's needed is a layer of ping-pong balls covering the pool. They should be light enough to let you "swim through" them, and should reflect enough more of the solar IR to reduce the water temperature quite nicely. For even better performance, you could consider "aluminizing" them, either by getting the novelty shop "silver balls" or "golden balls" or by painting them with aluminum colored Rustoleum® primer. Since the increase in wet surface exposed to the air might encourage growth of algae on your balls, you'd probably want to give them a wash occasionally to keep the reflectance up to snuff. They'd float in the washing machine and you'd have to run small batches, so I'd suggest running your balls in batches in a solution of Clorox® in your cement mixer occasionally; although you might want to experiment some to find a best method. If you get too fancy with the colors of your balls, you might still want some shade (privacy) fencing, since once word got out about Bobert's technicolor balls your pool could become sort of a tourist attraction, and you probably wouldn't want a lot of people looking at your balls while you swim - although a few friends probably wouldn't be much of a distraction. John |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Rapparee Date: 22 Jul 13 - 07:11 PM Just sprinkle the top of the water with powdered magnesium. It'll reflect the sunlight nicely, and if you're not careful with fire you could have one helluva barbecue...not to mention roasted aircraft or even the passing satellite. |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Bobert Date: 22 Jul 13 - 07:23 PM Well, gol danged... Some mighty fine ideas that even the Wes Ginny Slide Rule didn't think of... I hate to say it but Chongz might win the "fine ideas" contest... Bigger ice cubes isn't exactly genius but for a dumb monkey, it ain't half bad... I also liked my sis, Ebbie's, idea... Get real hot and then jump in the pool... As smart a feller as John in Kansas is, I did the math and the cost of them ping pong balls would be greater than the Chongz option.. Plus, I'd rather be known for being a decent blues player than a guy with the rainbow balls... Oh, and as for Rap's tarps idea??? That is totally retarded so I'll keep it in mind... B~ |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: JohnInKansas Date: 22 Jul 13 - 07:54 PM Well Bobert, an option on the balls would be to order something cheap that comes in a big box. The box will be so full of those little styrofoam peanuts that you'll have to have some place to dump them anyway, so you can just toss 'em in the pool to make a good reflective layer on the surface. Then the tourists can come and stare at you goobers instead of laughin' at your balls. John |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Bobert Date: 22 Jul 13 - 08:27 PM Hmmmmmm??? People coming to see my peanuts v. people coming to see my balls??? Let me get back to you on this one, John... B;~) |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Little Hawk Date: 23 Jul 13 - 12:06 AM All kinds of brilliant ideas here, eh, Bobert? It restores one's faith in the Internet, by golly! You want a solution to a problem? Just ask the Mudcat membership (and Guests, of course). |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: GUEST,leeneia Date: 23 Jul 13 - 10:17 AM Bobert, is this 'pool' actually the pond in your back 40? How big is it, actually? If 'yes, maybe you could build a smaller pond downstream of the first one, a pond that's easier to shade and would have better water quality because sediment would settle in the big pond first. I thought the white tarp idea was good until I realized that somewhere there will be a low spot(s) and the low spots will collect dirt and rotting leaves, will discolor, and eventually rot. After thoughtful consideration, I've concluded that the slat house idea is the best one. It will let rain right through. Or - build the smaller pond and hire a tent from a tent place for the summer, the kind of tent they rent out for festivals and outdoor weddings. Then the tent people would do all the work. |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Rapparee Date: 23 Jul 13 - 10:33 AM Nah, I'm thinking of the kind you see on trucks. Heavy, heavy plastic. |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Bobert Date: 23 Jul 13 - 10:44 AM Well, this is a real pool... 20,000 gallons real with a diving board and 10 feet deep on the deep end, leeneia... B~ |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: GUEST,Chongo Chimp Date: 23 Jul 13 - 11:07 AM And my guess is, yer always goin' off the deep end, right? Ook! Ook! ;-D Well, y' might know that most Chimps don't like swimmin' much. We ain't really built for it. I useta just hang out on the beach to be "cool", have a drink, watch girls, that sorta thing, and sometimes I'd wade into the shallows a bit. But Renata decided I oughta know how to swim and she got me to take a course at the Y. I can swim almost as good now as Johnny Weismuller (rest his name!) could back in his prime. I like divin' too, specially "the cannonball". I gotta come down for another visit sometime, Bobertz, and give yer pool the Chongo stamp of approval. - Chongo |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Bobert Date: 23 Jul 13 - 07:56 PM Come on down, Chongz... We have an outside shower to get the bugs off you before you go in the pool... Maybe I could teach you some cool dives... I mean, any monkey can do a cannonball, right??? B~ |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: GUEST,.gargoyle Date: 23 Jul 13 - 11:35 PM Folks I know...in global regions where where the daytime temps can run over 45C and the nights drop to a balmy 38C .... cover their swimming pools with a high strung double triangle tarp on guy-wires. The cables and toggle bolts last for years...the tarps are rotated and they are good for two years. It keeps the swimming pools down to 28C Nice geometric artistic designs. Sincerely, Gargoyle evaporation can still run one inch a day ... watch out for salinity. |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Rapparee Date: 23 Jul 13 - 11:48 PM One way of mixing the cool bottom water with the warm top water is the use of a sudden release of gas, such as what happens when some people are on the bottom or a stick of dynamite on the bottom explodes. NB: Don be in the pool when either one happens. |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Bee-dubya-ell Date: 24 Jul 13 - 08:37 AM There are commercially available shade cloth "sails" for applications similar to what Gargoyle describes above. They're more expensive than everyday tarps, but they last 10 years and are designed to be pulled super tight so they don't flap in the wind. Click here for some examples. |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: JohnInKansas Date: 24 Jul 13 - 09:02 AM Common local codes in the Seattle area prohibit parking campers or boats where they're "visible from the street" but in most places if you cover them with a tarp they're "invisible." Since the common blue tarps are the cheapest, commercial airline pilots refer to Seattle as "blue tarp city." My experience using "blue tarps" for camping a week or two each year is that expecting them to finish the second use is "overly optimistic," but some of the "aluminum colored" slightly more expensive ones (even from Walmart) have lasted me ten years or more without a rip. Even more durable ones are available from the farm equipment stores, but most are too big for my camp use so I've haven't had much experience with them. The "industrial" kind are also at some truck stops, but seem significantly more expensive there. Be aware that a large canvas is a sail and very sturdy posts are about as important as the quality of the tarp if you want it to stay up for a while where it can cast a shadow. John |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Rapparee Date: 24 Jul 13 - 09:06 AM Probably be cheaper to invite Spaw over and feed him bean & cabbage burritos and lots of beer before he goes in the pool. |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Little Hawk Date: 24 Jul 13 - 09:14 AM Or...just drop him in the pool now and then from wayyyy up high, using one of those huge cranes that they use on top of buildings. The resulting GIANT SPLASH! will mix the water. |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: JHW Date: 24 Jul 13 - 11:11 AM Why did Swamps need coolers? |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: GUEST,leeneia Date: 24 Jul 13 - 11:44 AM Hi, Bobert, thanks for explaining about the nature of the pool. I've thought of the solution. The shallow end is gonna heat up the fastest and the most, so don't put water in the shallow end. When the hot weather comes, just use the deep end. Simple! Of course you will have to be scrupulously careful to keep little children away from the pool because all the water's too deep for them. But I don't recall you ever mentioning little children in your circle of acquaintance. |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Bobert Date: 24 Jul 13 - 05:00 PM Brilliant, leeneia... B~ |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Little Hawk Date: 24 Jul 13 - 07:25 PM Here's an even cooooler idea: Flood the entire property to a depth of, say, 4 to 6 feet of water. The pool will hardly be affected by the heat then, given that its topmost level will be under a few feet of water already. For a refreshing swim, all you will have to do is jump out of any second-story window in the house. |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: JohnInKansas Date: 24 Jul 13 - 07:28 PM Actually leenia's suggestion is okay, but if you only fill the deep end of the pool you've still got warm water on top and cooler water down below. The simpler solution is just to go ahead and fill the whole pool, but only swim at the bottom of the deep end where the coolest water is. Once you've demonstrated the advantages, everybody's going to want to do it that way and you can probably make a killing on concrete swim fins and extra long snorkels. (With a short version for mothers-in-law?) The usual tinfoil swim cap somehow doesn't seem quite right, but maybe it would work with a lead liner. (Just be sure you get your trade names registered ® before somebody tries to horn in on the business.) You may not be able to patent the concrete footwear since I've heard the idea has been used before. There might be some market for stylish variations (design ©), but you'd probably have to do the selling in the bigger cities. Locals in your area have seemed to prefer footwear made out of log chains, according to market survey reports. (Although a limited market segment reportedly likes burlap for small swimmers?) With a little promotion, you could likely get some neighborhood kids to work cheap on the product testing, and some of their parents might be glad to get them out of the house. John |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Little Hawk Date: 24 Jul 13 - 07:48 PM That may be what happened to Jimmy Hoffa. The poor guy was just trying to cool off. |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: JohnInKansas Date: 24 Jul 13 - 08:05 PM No way, LH. If Hoffa was wearing concrete it was a full-dress suit, which would have been uncomfortably hot in summertime. I don't recall what the weather was like, but it could be that some of his friends were trying to keep him warm ... (?). John |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Bobert Date: 24 Jul 13 - 08:45 PM Whoa... I didn't have nothin' to do with Jimmy's disappearance... I'm just trying to cool the water in my pool without having to use a back hoe to go swimming... B~ |
|
Subject: RE: BS: Swamp-Cooler to Cool Pool Water??? From: Rapparee Date: 24 Jul 13 - 09:09 PM Hey, they cooled Hoffe, didn't they? Same deal for your pool. |
