Pool doc I read your post on the other thread. I do have a 2 speed pump and been using low at night and high during the day.

I have the cart and sand hooked in series. I put the cart back in like you suggested. The pressures are normal there. Typically the sand by itself starts at 12 psi. With the cart installed the sand is at 8psi. Lower flow? It will filter better I would think. If I run it with both filters on low the flow is too reduced IMO. So I am running on Hi now.

All #'s are still normal. Just cloudy.