shock level with solid cover when closing?

[BigDave]

The cover should be slack and on top of the water. Let some air out of the pillow.

[rajung]

Thanks, So I assume what I will do is ok, I haven't done all this yet, will do in a few days.
As far as shock, with a solid cover,should I elevate the FC to normal shock level or reduced?thanks

[BigDave]

I bring to shock level as per the Best Guess Chart when I close.

[JimK]

I bring to shock level as per the Best Guess Chart when I close.

I think one of the OP's concerns is whether or not covering the pool with a solid cover after shocking will cause issues with the pool out gassing.

After shocking, do you wait a bit before covering so byproducts have a chance to properly out gas? Or do you cover right away after shocking?

[rajung]

That is correct,I do think I will shock to the 20ppm, then wait a few days for it to drop back to the 5.0ppm for my stabilizer level which is at 40ppm.
Sound right?

[FormerBromineUser]

Just an aside.... Are you also worried about high CL affecting your cover? Also, do you have a pump on your cover over the winter?

[rajung]

I take all my equipment to the garage,except heater which I cover.
More worried about the high chlorine level on the vinyl liner than the cover.
I think I am going to go to the shock level 20,and wait couple days,check FC and when it gets down to 5 ppm I will cover.My CYA is currently at 40ppm.