When I bought my house the pool had a nature2 mineral cartridge, it also came with light blue /green stains along with strange blotches throughout the the entire pools plaster. Not knowing the cartridge could be the problem I've replace with new ones the last 2 years. Yup the stains are worse than before. Is there a way to remove the stains short of draining?
Thanks or any help.
Thanks or any help.