I need some help identifying this old sand filter and the multiport valve. The label on the filter is obliterated and the tags on the multiport are difficult to read.
I'm trying to figure out how to open the filter for a deep clean (we are in the middle of a SLAM) without breaking anything.
I'm not as familiar with sand filter efficiency so I'm not sure how quick to expect it to filter the green goo. The pressure is running at 20 but doesn't seem to be climbing as expected. Also the green seems to taking longer to fade than anticipated.
Day 2 1141am.jpg
Thanks for the help.