Algaecide

[PoolJunkie]

No need to start a second thread. Let's keep the discussion all together in one thread. ( I merged your two threads into this one.)

Welcome to the Pool Forum!

Thank you, I didn;t realize there was a delay and thought maybe I hadn't clicked submit on the first one.

Thanks for the feedback, the "HTH Super" will go back to the store tomorrow and I will find the Tri-chlor! Tri-chlor was what I used all summer and my CYA levels are in range. I will watch them next year to make sure they don't get higher. I have an in-line flow controlled cylinder for the tablets so I can fine tune the baseline chlorination and CYA, then shock as needed.

As for Algaecide, I just found another gem on this site and figured out why I had to shock my pool 4 times on Sunday just to get a measureable FC level . . . I put in a treatment dose of Algaecide on Friday (NOT polyquat, cant remember the long name) and it was probably eating the chlorine.

[CarlD]

Polyquat will lower your FC if used in large amounts, but not in small weekly doses. When I close my pool, I run FC up to shock level and add a quart of polyquat, then wait 48 hours. FC drops like a stone, but then I raise it back to shock level and I am done with the water.

[Watermom]

Thank you, I didn;t realize there was a delay and thought maybe I hadn't clicked submit on the first one.

When new members write a post, it goes into a moderation queue where it waits until we read it and approve before it is modded in and will appear on the forum. We try and empty out the queue multiple times per day so usually it isn't too long before it will show up.