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Could someone tell me the best way to dispose of old/expired testing chemicals? In reading some old posts, it says to pour them down the drain or in dirt. We have a septic system, so not sure if these would be safe to pour down the drain or not. Thank you. I want to do the responsible thing.

Can someone explain the different between the FC level and the warning on the bottle of bleach to not swim if bleach if more than 3ppm? I am keeping my FC level at the recommend level and have not had any issues, but my husband is concerned with the bleach label stating that we should not swim...

Can CYA testing agent R0013 go bad? We purchased our TF-100 kit in late August, early September of 2014. I have been doing my testing without difficulty. When we opened the pool the beginning of May 2015, I was getting some consistent CYA readings of 40. I all of a sudden starting getting...

I don't typically test my calcium hardness as we have a vinyl pool. I recently tested it and it came out at 25 (1 drop). I was looking for some confirmation of my testing (for CYA more than anything else), so I went to my local pool store to get a "free" professional water test. They tested...

We recently installed an inground pool and had water delivered on monday. We have the TF 100 test kit on order and it should be here friday. This is a green tint (not strong, but somewhat noticeable) only in the deep end. The shallow end is crystal clear. We have put bleach in to raise the...