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Opening new thread on this because I think my latest issue might have been lost within the original post. Did my first AA treatment and cannot get chlorine to stay in the pool after 6 days. Did AA treatment on Sunday (six days ago). Followed all the instructions and added 32 oz of Polyquat...

About to do AA treatment after opening pool but looking for advice on water chemistry before. Current numbers: Pool is 29K gallons, IG Plaster. FCH: 0.5 pH: 7.7 TA: 70 CH: 200 CYA: 20 (will raise after AA treatment ) Salt: 3400 (ready to turn-on the salt cell but haven't yet) Water...

Looking for advise from the forum chem experts on identifying metal stain I’ve been dealing with for a couple of years. I have large brownish stains mostly in deep end around the bottom drain. At first I thought they were organic stains resulting from the accumulation of earthworms that...

Opened the pool two weeks ago no fuss and all looked good. Pool was built Sept 2010 and have been fighting constant pH creep. Previous two openings pH was high but no scaling issues. This year pH was off the charts high (was 7.4 when i closed). Took 2 gallons muratic acid and 5lbs dry acid to...

This is my first summer with the pool. See signature for configuration. I understand the recommendation and rationale explained on these boards for keeping CYA around 80 for SWCG pool but I am wondering if that is still the recommendation when I am not having problems with CYA at 40 and...

Hi all. Newbie here with first post. We just closed our new pool for the winter. I had assumed that the closing company would test the water and add acid to the pool to balance the ph before closing and they did not. I had tested yesterday and ph was somewhere between 7.8 and 8.0 with TA of...