I have a Triton 2 sand filter.
After I backwash my pool , and return it to Filter, my pressure base line has always been about 12-14psi.
When the pump is running my returns are alive with high flow.
Today I came back about 1 hour later I notice the lively flow is drasticly reduced.
The pump pressure is now reading 25psi.
I shut the pump off for a minute, and turn it back on and now its about 19psi and the return is lively and my vacuum side cleaner is full of energy.
This last for about 30minutes, until the pressure rises to 25ps, and I back to square one.
Any ideas why the pressure would be high an hour after a backwash, of why it would drop after a power cycle?