I opened my sand filter up for the first time after four years of having it, to do a deep clean. The sand looked very clean to begin with and rinsing didn't really wash up anything either so I guess we are ok.
However, the level of sand is what I would describe as a little less than half full. Is that normal? I never looked into one before so I have no idea what it should look like and was wondering if we lost sand over the years?
If so, can I buy a bag and just top it off?
And a sparkling pool season to all