Sequestering agent?

ethany

LifeTime Supporter
May 23, 2009
516
Trenton NJ
#1
My pool is still green but getting better everyday. My question is since my pool is fiberglass I been using Jacks purple stuff all season last year to keep the stains at a minimum. Should I use it now or could I wait til pool is balanced?
 

JasonLion

TFP Expert
Platinum Supporter
LifeTime Supporter
May 7, 2007
37,879
Silver Spring, MD
#3
You can add sequestrant any time. If you are trying to remove existing stains the other levels are very important, but if you are simply adding it as a precaution against future stains it is fine to add any time.