Green algee?

Question

I have an green algee problem, I went to the pool store and they told me 16oz of algecide and 2 pounds of turbo shock, the algee was still alive because when I vacumed, the algee came back into the pool. Do I need more algicide,shock or clorine?

Answer 1

shock is considered your chlorine. so many people do not know that. i would use a liquid chlorine as a weekly maintenance and to kill your algae problem. you need to overkill on the chlorine otherwise you are "teasing" the algae and it will grow back. you will not kill it all. algecide is only really a preventative maintenance. it will kill it some but its not really designed to kill it all off. so shock it very hard with liquid and follow up with clarifier when the water gets "milky cloudy" and that just means that you have killed everything off and you are on the road to success! then put your algecide in there after its cleared and once for each week along with your chlorine and other chemicals!

Answer 2

Algae will do that when you vac on the filter setting with a sand filter. The particles are small enough that they quickly saturate the sand bed and spit out the returns. You should vac it on "waste" or "drain", remembering that you'll lose some pool water this way, so do it quickly and overfill the pool a bit before you start to offset the loss.

As to if you need more chemical.

If your chlorine residual is 3.0 or more, no, not more chlorine. Algaecide never hurts though but if you're going to add some, use a poly quat based algaecide and not the cheap methydi ( name so long I can't spell it). Make sure the rest of your chemistry is balanced, particularly the TA and pH, as that will help everything else you've added, work better.