Turn the water at the piercing valve off. Then disconnect each line going into each filter one at a time with the water turned on again. You will soon find out where the trouble spot is, where there isn't any water pressure, Tedious yes.
Sometimes more often than not its at the restriction where the waste water goes into the drain. ie the flow restricter. Your filters should not be plugged at only 100 gal output. Check the flow restricter first.
|