Closing the pool this coming weekend and currently have the FC at shock level. The pool school in-ground closing instructions say to let the FC fall back down to about 50% shock level before closing. Why wait for it to drop? Seems like a higher FC level would be a good thing to help the chlorine last through the winter. What do others do?
Closing FC Level - Shock or 50% Shock?
- Thread starter poolneophyte
- Start date
Doesn't it say to let it drop before adding poly 60? If you are not adding the poly, then you should be fine to close I think.
.... maybe I should go read the articles again since I never experience this so called closing
.... maybe I should go read the articles again since I never experience this so called closing
I don't understand the purpose of letting the FC drop to 50% prior to adding Poly60. I know that Poly60 has a chlorine demand but can't understand why we should let the FC drop prior to adding Poly60 and then have to add more bleach to bring the FC back up again.
I don't plan on using Poly60 this year but want to understand what the reasoning is behind the instructions. Also, is there any reason that I shouldn't close the pool at shock level?
I don't plan on using Poly60 this year but want to understand what the reasoning is behind the instructions. Also, is there any reason that I shouldn't close the pool at shock level?
I think it has something to do with the demand o the chlorine by the polyquat. If the FC is higher and you add the poly, the poly gets oxidized much more quickly.
That's a best guess from what I remember reading. I could also be completely off base.
I bring my pool up to shock level (or slightly above), no algaecide, and cover it up.
That's a best guess from what I remember reading. I could also be completely off base.
I bring my pool up to shock level (or slightly above), no algaecide, and cover it up.
Thanks. That's what I plan on doing. I just like to know that I will not damage the liner or my Looploc mesh cover with the FC at shock level.
I had to artificially increase my FC with bleach to shock levels to close because my SWG quit working due to low temp. But I got up to shock levels. Added my algaecide and closed the autocover.
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