This problem started only over the last couple of days. If I remove the vac, from the end of the hose, PSI returns to normal.
I did an initial inspection of the Vac, and did not see any obstructions, though I would not rule that out. Is this a common problem?
PIPPENGER
An inground pool you usually pull water open the bottom drain slightly or your vac hose has an obstruction.
An extreme one have sand in the turbine gear and the unit and it may also check the hayward website that can.