You can raise it by just using pucks , but it takes awhile. You can also add it seperately-- it's sold at WalMart, Home Depot, etc as "conditioner" or "balancer", but if the ingredient label says cyuaniric or isocyanuric acid, that's the stuff. You can add it via skimmer (don't test or backwash for 4-5 days if you do it this way because it takes awhile to dissolve) or pit it in a sock and hang it in front of a return. If you want to keep using pucks, shoot for about 20 ppm CYA if you add it seperately. If you're done with pucks, shoot for around 40.
Janet
Bookmarks