Cooling a Hot Pool

[aylad]

well you could always pump some water out and refill, I'm sure the tap water is cooler than the pool.

It would work, but in some areas (I believe Dallas is one), they have water restrictions that would make draining/refilling a problem. Also, depending on your fill water composition, draining and refilling can really mess with your chemical balance.

Janet

[Watermom]

And, with the high temps that much of the country is having, it would only be a matter of days until the water temp was back up there again. So, it could be a short lived fix.

[matt4x4]

Well, there's full proof that Ben is totally AWOL - Duraleigh's post wouldn't have lasted more than 5 seconds and Duraleigh would now be permanently banned from Poolforum even though he has given years of insightful and extremely helpful advice to many a lost soul on this forum.

One thing that keeps coming to my mind about using a fountain is loss of water to evaporation - bearable if you have a water source to replenish from, not so bearable when you have to pay to truck your water in.

Burrying the hose would definitely help, however, in climates with frost (where hot water problems would likely be less prominent), it may cause an issue when it comes to draining the hose at year's end.

[sammm]

One thing that keeps coming to my mind about using a fountain is loss of water to evaporation -

Wouldn't it also drive up PH levels?

[matt4x4]

Actually, aerating will lower your pH, but yes, it will have some effect on your water - however, raising your pH is easier than lowering it - simply add borax.

[KurtV]

Actually, aerating will lower your pH, but yes, it will have some effect on your water - however, raising your pH is easier than lowering it - simply add borax.

Aerating will raise pH but without raising alkalinity (much). So the end result, after adding acid to lower your pH again, will be lower alkalinity.

[duraleigh]

Matt and Kurt,

I have been pleasantly surprised at how little water is lost to evaporation. Over the 3-day period I just completed, I lost little more than 3/4". In this heat, I would expect 1/4" daily anyway, so it appears the extra evaporation is pretty minimal.

Secondly, I can't give really valid data on pH because my stupid pool wants to raise pH all on it's own. It has done this for the five years I've had it.....don't know why. I typically add acid about weekly and I supect I've had to add a little more because of the aeration (I keep sloppy data) but it's not anywhere near double....probably more like 25%. I need to check Alk but haven't done so yet.

Lastly, I agree with Kurt that it should be pretty inneffective in high RH. When the temps get in the upper 90's, it's pretty hard to get RH much above 50% in midday here so that's primarily when I run it.

All in all, I would rate it right up there with Ben's kit as the best money I ever spent on my pool.

[matt4x4]

oops - sorry ! Don't know what I was thinking there except that maybe I was in need of another coffee!
A fountain is something I can't do simply because I can't afford 1/4" a day, heck - I can't afford 1mm a day!
My solar blanket is on unless we swim, if the pool gets too hot I just change my timer to run at night and keep the solar panels on - tend to be able to drop 5 degrees that way

[KurtV]

oops - sorry ! Don't know what I was thinking there except that maybe I was in need of another coffee!

Happens to us all.

[rlanthony@excite.com]

We've had clouds and cooler temps the last couple of days. So not much solar heat getting to the pool. When it was sunny I checked the temps it went from 92 to 89. Not much cooler. I will check the ph and alk this weekend to see if it is changing. I did run across a comercial mister device I'll see if I can find it again and post a link. It seems to be very similer to the device posted, but prebuilt. It was about 29.00 and hooked up to an eyeball socket. Compared to the forced air fan type at 2600.00 I think it may be worth a try. I have notice some more rapid water loss, not much but just about 10% more than normal for this time of year. Thanks for the input.
Rick