I am trying to visualize this one... Being that both FEED pumps were inline did you hard plumb somehow into the res? or was it just a case of you throwing the feed line into the res then pulling from there?All my pumps were inline and outside the rez`s.....Inline pumps only shoot juice one way with no backflow like a check valve , so that`s why I needed 2 separate units for feed and drain....Plus.....
Twice the power blastin feed in , pushing stagnant air from the bottoms up and out of the upper buckets , then the drain pump sucked juice back out at lightspeed while pulling fresh O2 back down with it through the medium 3 times a day with the 5 gal buckets full of lava....