It won't hurt to add an algaecide. Just make sure it is polyquat 60%. Perhaps you don't have as good of circulation in these areas? That may be why you are getting some algae in these certain spots? Just a speculation.
Re: Polyquat algae prevention question
It won't hurt to add an algaecide. Just make sure it is polyquat 60%. Perhaps you don't have as good of circulation in these areas? That may be why you are getting some algae in these certain spots? Just a speculation.
Re: Polyquat algae prevention question
yes the circulation on the grotto shelf is not great and it's probably in the shade most of the time.
As for the other spot it collects is on a step from my baja shelf into the pool and this is right near the spa spillover so I would think circulation right here would be excellent however it collects like crazy right there. The sweep can't get to it. I have to brush it.
I might try the algaecide and I am keeping the chlorine level high right now to see if it will prevent it from coming back.
thanks,
-- john
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