How much Polyquat?

[birkesl]

Split by moderator from HERE. Please start your own thread for your own questions. Thanks, jblizzle

How much polyquat and at what concentration (I've never bought it and have no idea what to get) for a 40k gallon inground pool?

 

[chem geek]

Re: Closing an in ground pool

See this post for what Buckman Labs (the makers of Polyquat) recommends for closing the pool. The maximum recommended dose is 16 fluid ounces per 10,000 gallons. So for 40,000 gallons that would be 64 fluid ounces (i.e. 8 cups or 2 quarts). The concentration is the standard one of 60% as is found in GLB Algimycin 600.