How much algaecide do you need to clean up an algae problem in a 30K gallon in-ground pool?

I have a 27K pool and often have to buy 2 qts of algeacide and keep the remainder until next time. Most retail sizes( intheswim/ leslies) will only cover about 20K per quart

You have a large volume of water. It will take two containers of most products to work well. United Chemical of Calif has product called Yellow Treat that works wonders. They also make a product called No Mor Problems for maintenance. Good stuff.

Also another company has Yellow Out ~ good too Follow label.

Really, if you are maintaining your pool properly you should not need any of these additives.

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