which brand of polyquat?

Butterfly

TFP Expert
LifeTime Supporter
May 30, 2007
10,045
South Carolina
Any brand as long as the ingredients are "Poly [oxyethylene (dimethyliminio) ethylene (dimethyliminio) ethylene dichloride" at 60% concentration.

You can call around to see who has it (big box stores ie Lowes & HD, pool stores, etc) or order online.
 

chem geek

TFP Expert
LifeTime Supporter
Mar 28, 2007
12,083
San Rafael, CA USA
How much you add depends on what you are going to be doing. If you are closing the pool, then you follow the procedure in this post that uses the maximum dosage on the label which is 16 ounces per 10,000 gallons. So 18,000 gallons would be 28.8 ounces so just under 1 quart (so yes, 1 quart should be OK).
 

Durk

Well-known member
Jun 14, 2007
654
New Jersey
A fellow by the name of Ben Powell, of poolsolutions.com--well known to all who have been on this site for any length of time, has this info on his site:

Buckman Laboratories, in Memphis, TN, makes all the polyquat sold in the US, regardless of the label. Arch(HTH), BioLab (Bioguard, Omni, Pool Time, Aqua Chem, Sun, many others), LaPorte (Robarb, etc.) ALL simply repackage -- and possibly, dilute -- what Buckman makes.
http://www.poolsolutions.com/gd/polyquat.html
So it really shouldn't make any difference whose Polyquat 60 you buy.