Brand new PGP heads leak between popup and cover
I purchased a set of PGP heads from Sprinkler Warehouse to replace some damaged ones. I removed the popups and cover from the existing bases and insert new popups/covers that I purchased. Some of the heads appear to leak (drip) between the popup body and the cover piece, is this normal? On someof them, it seems to be enough to create apuddle around the base.