Is sequestering compound necessary in a vinyl pool closing?

[Kimvee]

First off, THANK YOU for helping me literally have a trouble free pool this summer. Following the advice on this site made it easy. I have to close my pool today, have read the winterizing article and am comfortable with everything in it - I did buy a winterizing kit from Viscount pools and it included a sequestering compound to remove scale. I do not have hard water or any visible scale, my CH is 300. After doing so well and with a new liner this year, I do not want to mess it up now. The kit also included an oxidizing shock with Potassium Monopersulfate & Dry granular winterizier. I would appreciate any guidance on the necessity of the oxidizing shock as well. I am in Michigan, we are having a freak 85 degree day, so I am trying to work with it

 

[ajw22]

The only chemicals we recommend for closing a pool is muriatic acid to lower pH, chlorine, and Polyquat 60.

Closing (Winterizing) Your Above Ground Pool

Closing an above ground pool at season’s end should be a fast and worry-free process. Learn the basics of above ground pool winterization in easy steps.

www.troublefreepool.com

How_To_Use_Polyquat_60_in_Pool_Winterization?

 

[Kimvee]

Thank you for answering - to clarify, if my FC is currently at 10, pH at 7.8 and CYA at 30 am I good to close without adding anything but polyquat?

 

[Bama Rambler]

Keep in mind that the algaecide (Polyquat) is optional. I've never used it and our pool is always clear when we open it.

If it were me, I'd just lower the pH to about 7.2 and close it up.

 

[ajw22]

Thank you for answering - to clarify, if my FC is currently at 10, pH at 7.8 and CYA at 30 am I good to close without adding anything but polyquat?

Your FC is fine to close. Lower the pH and add Polyquat if you want some additional protection.