Will do…just ordered a rebuild kit for it. I noticed that when I put the multiport on recirculate, water leaks into the backwash pipe. You are probably spot on.
I posted the brand and size of the sand above. AquaQuartz 20-grade. The same sand I’ve always used. I changed it because my pressure was high…after I changed it my pressure is still high.
Sorry…I was thinking you were asking what my pressure was before I started having problems. I answered and then realized you said “before I changed the sand”.
Just pulled the the valve off, cleaned it and even separated the top of the valve to inspect the ports and everything. No blockage there. Still at 22lbs.