Yesterday I noticed the dreaded black spots are back....can't believe I cannot get rid of this black algae. I have been scrubbing them with a ss brush but the plaster is so old, it is taking off then plaster, and the black spots are still there...ugh.
I've got a terrible feeling that I should have just had it replastered when I emptied it this time. The water is now too cold and too chlorinated to get in and scrape them off by hand, but I might try anyway, since I'm desperate.
Also noticing some green patches forming at the bottom, so I'm guessing that is from the copper in the heater? Is that something that will go away or affect my readings in any way?
Thanks.
I've got a terrible feeling that I should have just had it replastered when I emptied it this time. The water is now too cold and too chlorinated to get in and scrape them off by hand, but I might try anyway, since I'm desperate.
Also noticing some green patches forming at the bottom, so I'm guessing that is from the copper in the heater? Is that something that will go away or affect my readings in any way?
Thanks.