u/Big_Concentrate_7309

Good afternoon!

We paid to have our pool opened yesterday. When they left the pump and filter were running and pressures looked normal. Woke up the next day and the pump was going but there was no pressure in the filter (de). I pulled the top off and the filter didn’t look bad. When I pulled the filter basket where you prime the pump the water seemed to have back pressure. I replaced everything and primed the pump but having same issues. The weird thing is that one of the returns is bubbling despite having no filter pressure. This return isn’t typically strong. I tried backwashing but it didn’t help. Thoughts?