Laytek is a good one, I have had mine for about 6 years. You will find a picture of it on an article I wrote about inground swimming pools. It shows it hooked up.
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Hi- energy - $50.00 - $100.00, chemicals - $50.00 per month. I have owned a pool for 29 years 16x32 inground It is a lot of work, but you will love the relaxation Water evoration will be 1/4 inch per day. Do you have any other questions? I will be glad to help you.