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I have a Hayward HD100 natural gas heater. Purchased last summer. Makes a strange noise after ingniting. The video is not mine, but is the exact same noise. Any thoughts? It seems to be getting louder. http://www.youtube.com/watch?v=weQesHObmaU Thanks.

I've noticed over the last couple years that my vinyl liner has a big airpocket right above the water line. It started small but is now 2/3 around the pool. Under the water level, the liner there are creases in the liner or the liner is bunched up. Is this normal? I mentioned it to the...

I converted from Baquacil last (best thing I ever did). My question is about free chlorine. PH=7.5 TA=150 Cya=80 CH 110 The number after the date is an early evening check, the next number is the amt of increase in chlorine I expect based on the amt of bleach added and then the post bleach...

I think I may have a record-timing conversion (though still ongoing). This site was invaluable. I thought I’d share my experience with you. I took pictures but can't seem to upload them. The file size is correct. I'll give it another try after I get this posted. History: I decided last...

I'm ready to roll (day off, etc), got the bleach, read the conversion, etc. Did my chemical test this morning with the K-2006. FC - neg TC - neg pH - 7.8 TA - 170 ppm CH - neg CA - neg "B" - < 9 (reading from pool store couple days ago). My question is, can I start with the pH somewhat high...