Anyone knows how public swimming pools are maintained? Do they completely change the pool water at the end of day, or weekly? Anything they do to the pool overnight (just circulate like daytime, or do nothing, or change entire pool water)? Is the water cleaner in early morning than evening because of this? Thanks.
I have never heard of a salt based filter. I don't see how that would work. But maybe I'm just not keeping up.
I'm most familiar with sand, DE (diatomaceous earth), and cartridge filters (usually in home pools).
I have never heard of a salt based filter. I don't see how that would work. But maybe I'm just not keeping up.
I'm most familiar with sand, DE (diatomaceous earth), and cartridge filters (usually in home pools).
