I found my sand filter pressure gauge reading 40 psi when i went to open the pool after the winter.
It was just stuck there at 40. In the past it would be at 20 psi after a back wash and 30 psi when the filter was dirty.
I decided to go ahead and still open the pool and buy a replacement the next time I am at the local pool store.
After opening the pool the gauge now reads 60 when the pump is running and 40 when it's off.
Do you guys think that the gauge is broken or is there a way to reset it so that it drops back down to 0 when the system is off and not pressurized?