Recent content by drtodd

Also, couple things. It's definitely organic. This isn't a stain. Secondly, if this were a systemic chemical issue, why would the patch return in the exact same spot and same size/shape/color within 24 hrs. (i.e. this is site-specific. If the problem was dispersed throughout the entire pool, why...

I live in Pittsburgh and the pool has only been opened for a week however we had this problem all of last season. I was hoping the winter would solve it but the same patches in the same areas were there on opening (lock-down cover). The pics I sent are from today though. The liner is in 5th...

I can answer some now but will get you an accurate chemical print out in a few days. 1) will get 2) 3" pucks - 2 skimmer baskets 3) not on well 4) inground vinyl pool - not sure base but not on cement/concrete (it's spongy) 5) No other products 6) It's not a stain and Vit C does nothing...

Brown patches on bottom of unground vinyl pool. Chemicals are correct. Won't scrub and algaecide does nothing however it is some sort of algae. The only way to get rid of it is dump shock directly on top of it so it coats it. After 10 min, it's totally gone with no stain. Next day it's back in...