I've got a couple things:
1st my filter runs clean at about 10psi, right at the top edge of the green indicator on my gauge. 11psi starts the yellow area. When the pressure in my filter hits 11 I dramatically lose flow out the return. I added the DE yesterday afternoon, and monitored the pressure. As expected the 1 psi increase from adding the DE sent it into the yellow and greatly restricted flow. Since I knew it was due to the DE I allowed it to run that way for 30 mins to 1hr while monitoring the pressure.At which time the pressure had gone up to 11.5-12psi. So, is DE just not in the cards for my filter? or do you think a deep cleaning would lower the pressure?
2nd, I back washed two times last night. Both times after I did so, then rinsed, and put it back to filter a stream of tan(ish) brown came shooting out my return for about 5 seconds or so. I never see anything coming out when I'm just running filter mode...
I know this isn't normal, but I don't know what it could be either...