I discovered some small bits of black algae in my gunnite/plaster pool in areas where the paint has been removed (previous owner painted it, stupid).
Question is I bought an 18” stainless brush & wonder do I scrub until the black algae exterior is removed/broken & floats away, then perform the chemical treatment?
I guess what I’m asking is how will I know when I’m done scrubbing, will it be visible as in no more black marks visible or some other indicator?
Thanks.
Question is I bought an 18” stainless brush & wonder do I scrub until the black algae exterior is removed/broken & floats away, then perform the chemical treatment?
I guess what I’m asking is how will I know when I’m done scrubbing, will it be visible as in no more black marks visible or some other indicator?
Thanks.