Q & A With Mark:
Do Ferritabs really work?
According to Mark, with sand filter: Yes, after couple days of them going in, there is a huge difference.
With other type of pool filtration system: maybe.
Q & A With Mark:
Do Ferritabs really work?
According to Mark, with sand filter: Yes, after couple days of them going in, there is a huge difference.
With other type of pool filtration system: maybe.