Unfortunately I can't get the search feature to work - not sure if I'm inept or if it's broke...
I've got an inground pool with a Hayward DE filter that I had a couple of questions about. Filter is 36 square feet, three 1-1/2" return lines (one about 20 feet, one about 30, one about 45 that gets no traffic), 1 HP pump, all about 6 years old.
-Is it normal for there to be some DE "blowthrough" when I charge up the filter? I generally mix the DE in a 5-gallon pail of water, and pour that slowly into the skimmer. When I do that, there's a pretty big plume of DE that gets dumped back into the pool. Eventually it gets picked up by the cleaner, but it sometimes takes a while. There are no obvious cracks/tears on the filter innards, but I haven't done a complete tear-down and inspection yet.
-Is there a "normal" pressure reading for this type of DE filter? After cleaning but before the DE goes in it's running about 20psi, and that doesn't change much when the DE goes in. (Of course, if all of the DE is being blown back into the pool, that may be why...)