*SIGH* Looks Like I Have da' Mustard

[Watermom]

60% Polyquat is the only algaecide we recommend. Most pools don't need it although sometimes we suggest using it for various reasons, one being if you are going to be gone for awhile and unable to attend the pool. It can't prevent algae, but it can help to make it less likely that if your chlorine dips a little low that algae will start. Some people add some upon closing the pool in the fall. I never use it but others do.

add link: http://pool9.net/polyquat/
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