4
votes
6answers
2k views

Can I warm up a swimming pool by submerging black-painted milk jugs in it?

I know they make solar covers for pools, but I that is a bit of a pain to put on and take off all the time and my cover (from a well known manufacturer) from last year was easy to rip and became ...
2
votes
2answers
14k views

DIY pool heater - best methods? [duplicate]

Possible Duplicate: How can I efficiently heat a pool? I have an in-ground pool at around 20,000 gallons and I live in the northeast (Maine). My pool gets direct sunlight for about half ...
5
votes
7answers
12k views

How can I efficiently heat a pool?

Continuously heating a pool can be expensive and the best ways to lower the cost are to have a cumbersome pool cover in addition to the equipment needed (solar or an AC-like heat pump). There must be ...