Replaced DE Filter Mainfold - Pressure now Way UP

Cmbott88

Member
Jul 25, 2020
9
Woolwich, NJ
I replaced my pool filter manifold today because the old one had a significant crack in it that had already been repaired once. After replacing it and turning the pool back on, the pressure went up significantly. I checked all the valves, returns, etc.... nothing was different than before. I took the filter back apart and hosed down the grids as well.... no improvement. What else could cause this change?
 
What model filter are we discussing?

What is the part number of the MPV you installed?

Post pics of the filter and MPV.

You still have the old MPV to show us pics of the old and new MPV?
 
What was the PSI you had before and now?

At high speed or low speed on your pump?
 
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