Pool Company Closing Chemical Question

[mas985]

I am not a real expert on pool closing since I never close mine but non-chlorine oxidizer is Potassium Monopersul. It is used in place of chlorine shock but from what I know about it, it is not as effective. Not sure why they would use that instead of chlorine. Google this to find out more info:

http://www.google.com/search?hl=en&q...=Google+Search

From what I have read on the forum, most suggest a close after the water gets below 50 degrees or so. A bleach shock at this point should hold you over until thaw next spring. Use Ben's best guess chart for levels and you should be ok.

[Spensar]

One reason I read that non-chlorine shock was used is it is not corrosive on the pool cover if the cover is in touch with the water.

[snj2k2se]

OK, that makes sense. The cover only touches the water when we get enough snow to weigh it down.
I think I will ask them to skip this step this year. I shock to around 15 with bleach the night before they come to close the pool anyway.

Thanks for the help!