My pool is being refinished starting in may, meaning in june I will be set to be filling it back up. I have no pool heater, but I do have a tankless hot water heater.
Using the calculator here: http://www.zodiacpoolsystems.com/Ene...ater-Cost.aspx , I found that it would only cost around $50 bucks to fill the pool with 80 degree water, instead of the 55 degree ground water.
Has anyone ever done this? I feel like running my hot water heater for a couple days straight will probably **** it out. Right now just with a cover the pool is about 70, I will be installing some solar panels too but I cant fit as much as I will like, probably about 75% of the pool sqft.
I am just concerned that it may take a month or more to get the water up to a decent temp, by which time it will already be the end of june, but I do know that when the water is cold I will get quite a bit of heat gain per day due to the temperature differential.