I don't have algae right now. But I want to do a bit of a "dose" before I leave somebody else in charge of my pool. My DH will be here - LOL - but he doesn't want anything at all to do with "THE POOL" -

I know before someone mentioned the chemical name. The stuff I have right now may not be right, so I didn't want to put any in the pool if I need to purchase something else.

What I have is from Wal-Mart and cost about $14.88 or something. It says it is 60% strength.

Active Ingredient
Alkyl (60%C14, 30%C16, 5%C12, 5%C18)
dimethyl benzyl ammonium chloride.......................................... ....30%
Alkyl (68%C12, 32%C14) dimethyl ethylbenzyl ammonium chloride ... 30%
inert ingredients .................................................. ....................40%
Total............................................. ........................................100%

They did have another one that said "copper something" but I do remember this forum having tons of threads saying DON'T USE COPPER ALGACIDE - which is why I told the pool place, "No thanks, I have some algacide at home."

Okay, that was a LONG post for a simple question. Sorry. Thanks so much to everyone here. I haven't posted as much this year as last, but I am forever grateful to all of you who helped me out of a green, green, pool.