Closing Pool -- Can I use ClearView quat power?

[bottomcat]

Thank you Doc!

The only algae problem I have ever had was opening this season. I did not use PolyQuat when I closed last season and I probably let the chlorine go too low before putting the cover on. This is something that has always confused me. Are you supposed to wait until FC drops to a certain level before putting the cover on to avoid damaging the cover?

The pool is crystal clear now with the following levels:

FC: 6.4
CC: < 0.5
pH: 7.7
TA: 80
CYA: 50

It is 13,600 gal with a vinyl liner.

Thanks again!

[PoolDoc]

If you've got a CC < 0.2 [corrected], you can cover, regardless of chlorine level. It is the chlorine + ammonia or other nitrogen (waste) materials that vents off, and then damages covers.

But . . . you can always use the 'open corner' method, to clean up UNDER the cover, without damaging the cover. So long as the gases under the cover can be vented, I would not expect a problem.

In your case, I'd go ahead and cover now. If you like winterize the piping system later (now sure how late you can go in RI) and add the polyquat AFTER your chlorine levels have dropped a bit more.

[bottomcat]

Great advice! I assume you meant CC < 0.2. Thank you again!

[PoolDoc]

Yes, sorry. Corrected, now.