when closing pool, chlorine level for adding poly quat?

[smooth2222]

when closing pool, chlorine level for adding poly quat?

I have a mesh cover.

Will Poly quat last the whole winter and allow me to open up without a green pool?

Or would i be better off adding poly quat in the spring couple months before opening?

 

[X-PertPool]

I add it on the closing and try to open early. It seems to be a case of YMMV. It's best to have the pool as clean as possible and balanced when you close it up.

 

[UnderWaterVanya]

Remember it is thick and needs 24 hours of pumping to get distributed. There are some threads on the use of it and I had found one where chem geek posted the manufacturers recommended process. What I recall was that they suggested you "shock" for a few days at 5-10 ppm first, and then let the FC drop back to normal levels. Based on that I would say you should shock, then when OCLT is passed, let it drop to your normal level then add polyquat and mix for a day, then close.

But there are more expert opinions that should chime in.

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