low pressure when adding DE.

[sunofthebeach]

I would pull the top of the filter off and make sure mud and gunk is not blocking the intake where your pressure gage is.

[Amir]

Thanks. I did take the top off and cleaned the filter but did not check in take of the pressure gauge. However from what I remember the pressure gauge is screwed into the top half of the filter enclosure. I will check it out again tonight. What is puzzling is that it reads 10 psi before adding DE!
Regards
Amir

[StevenHB]

The impeller on my pump gets clogged with debris from time to time (a large volume of small stuff will pass through the basket but clump together at the impeller). Sometimes, I can pull it out with my fingers after removing the filter basket cover and filter basket. Other times, I need to remove the pump from the pump basket assembly and use a piece of wire to clean out the impeller channels.