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"Courageous" wrote in message ... A: Stop by the pool section in the garden center at Home Depot on Thunderbird at I-17. Pick up a pool / spa thermometer. Without it you're only guessing at the temperature. One could not have better advice. C// ========================= At the pond shops they run $15 and up. At Home-Depot they're around $3.99. :-) I bought several last time I was there. -- McKoi.... the frugal ponder... EVERYONE: "Please check people's headers for forgeries before flushing." NAMES ARE BEING FORGED. My Pond Page http://tinyurl.com/cuq5b ~~~ }((((o ~~~ }{{{{o ~~~ }(((((o |
roof of sunscreen cloth (Home Depot or Lowes). Have you tested the water temperature? Out of curiosity, what was your own? C// |
"~ janj JJsPond.us" wrote in message ... ,,.How about a fine mist of water. Which reminds me. Isn't AZ where they came up with those fine misters above a patio to keep it cool? Why not above and around the pond? ~ jan Evaporative coolers work incredibly well in AZ and NM. Last summer I was out in AZ, it was about 110F outside before a rainstorm came in, within minutes the air temp was about 60f. Unfortunately I don't think an evaporative cooler would work well in cooling a pond, not the way you described anyways, the transfer of heat from water to air is not very good, so a lot of water would be wasted for minimal cooling value. A better solution would be to run the water through some aluminum radiator coils, and to mist water over the radiator coils. Perhaps run a water line through the pond, before going to the sprinkler system, that would help, again minimally. I think probably the most practical solution would be to cut the tops off of a couple 2 liter soda bottles, fill it with water, then just dump the ice into the pond every morning, which really won't help, assuming my math is correct. Assuming 4L of ice, in a 90F (32C) 700 gal (2650 L) pond heat taken up to convert ice to 0c water 4 kg x 334 (kJ.kg-1) = 1336 kJ heat taken up to convert 0c water to ambient temp 4kg x 4.18 (kJ.kg-1. K-1)x 32 (º K) = 535.04 kJ kJ absorbed = 1336 + 535 kJ = 1871 temp drop of pond -1871 kJ = 2650kg x 4.18 (kJ.kg-1. K-1)x N(º K) = .16 ºC or about 3 ºF Seems to me to be an awful lot of work for such minimal gains. |
A quick Google on evaporative cooling turned up the following.
http://www.consumerenergycenter.org/...e_coolers.html It states that evaporative cools in dry atmospher can cool the hot air by as much as 30 degrees. The plus is that they use much less engery that a AC unit. It would seem one would need a evaporative cooler to chill air then an air/water heat exchanger to cool the pond water. It sounds doable. Up here in British Columbia I dont have to worry about the pond getting too hot - especially with the summer we are having. Courageous wrote: A better solution would be to run the water through some aluminum radiator coils, and to mist water over the radiator coils. Perhaps run a water line through the pond,= before going to the sprinkler system, that would help, again minimally. If those aluminum radiator coils were buried somewhere cool, you'd have a heat exchanger, and it would be effective. The challenge will be that the ground gets pretty hot in AZ in summer. So finding that cool spot will be work, and the digging will be deep. C// |
Greg Cooper wrote:
A quick Google on evaporative cooling turned up the following. http://www.consumerenergycenter.org/...e_coolers.html It states that evaporative cools in dry atmospher can cool the hot air by as much as 30 degrees. The plus is that they use much less engery that a AC unit. It would seem one would need a evaporative cooler to chill air then an air/water heat exchanger to cool the pond water. It sounds doable. Not necessarily. Any fountain is going to work as an evaporative cooling mechanism - the finer the spray the more effective (but also, the more water the pond loses by both evaporation and wind-drift). If those aluminum radiator coils were buried somewhere cool, you'd have a heat exchanger, and it would be effective. The challenge will be that the ground gets pretty hot in AZ in summer. So finding that cool spot will be work, and the digging will be deep. Again, that's for a "perfect" solution, but you don't need refrigeration, just enough cooling to keep the pond at a nice temperature. I don't know Arizona, but you only need to be down a couple of feet to be significantly cooler than daytime air. Basically, if you can get the heat exchanger into any soil that stays under 80F, you should be cooling the water below the danger zone for your fish. -- derek |
A: Stop by the pool section in the garden center at Home Depot on Thunderbird at I-17. Pick up a pool / spa thermometer. Without it you're only guessing at the temperature. One could not have better advice. C// |
A better solution would be to run the water through some aluminum radiator coils, and to mist water over the radiator coils. Perhaps run a water line through the pond,= before going to the sprinkler system, that would help, again minimally. If those aluminum radiator coils were buried somewhere cool, you'd have a heat exchanger, and it would be effective. The challenge will be that the ground gets pretty hot in AZ in summer. So finding that cool spot will be work, and the digging will be deep. C// |
I got a thermometer from Petsmart yesterday. its 5:55 am now and the
pond is 78degrees. Ill check it at 1pm and see again. I added 4 more comets and4 more shubunkins yesterday and about 30 rosies. I also just ordered a bunch of 72 stems of anacharis. Chris |
I live in the south so i have to have a lot of shade also. I built a
"terraza" over my pond..... BTW i live close to the gulf so it also keeps the big brown pelicans and herons away...below are some pics;-) http://community-1.webtv.net/MATRIXJ...TLE/page4.html |
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It would seem one would need a evaporative cooler to chill air then an air/water heat exchanger to cool the pond water. It sounds doable. I saw a recent DIY prototype of an evaporative cooler for an aquarium. Basically, the guy created a tube into which he dropped water (from the aqarium) as well as two blowers. Air and water blew down, into the aquarium, where they bubbled and sloshed. It was very effective at cooling his aquarium. C// |
Yup they are the sun worshipping canna! Even in the shade they grow
profusely though. They like their feet wet in about 3 inches of water "max" 1 or 2 inches is better or they will turn yellow and die...."took me two years to figure that out" LOL! They are now about 4 feet tall and have very large yellow and red blooms. Here in Texas they grow year round and laugh at the summer heat...just like "purslane"...very rapid growers giving off baby plants by =BFrizome?---sp?. I just use lava rock and plant baskets "no soil" to plant them in. |
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Ok I checked at 1pm like I said but my thermometer said it was
98degrees in open sunlight. I took away the pool umbrella for the day just to see what it was like before I added it. WOW that seems too warm. With the umbrella providing shade the whole day I think it will maintain about 80 degrees during the heat of the day. On top of thatI seen a bird today snag one of my comets out of the pond today. Now I have to work something out for that I guess. Does the madness ever end? can I just sit back and relax and enjoy the pond without having to work on it? Haha. Chris |
Those are marble queen ivy and closet plant.
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