So, I've decided to deep clean my sand filter since 1) it's never been done since I built the pool 6 years ago and 2) I seem to have a pollen problem that I'm having trouble getting rid of. So, when I opened the filter, this is what I saw...
What is this thing and how do I remove it in order to clean the sand?
Also, as far as I could see, it didn't look like there was much sand in there...maybe half full.
Shouldn't there be more sand than this in there?
TIA for your help!