OK, Here are the #'s just for information. The drain time with the rule 3800 is 3.36 min for 110 gal / 33.33 gpm or 1999.8 gph ! Still the rated flow of the pump but it's about all I can get out of the back sac's .. I still have one more 1" threaded fitting to drain the center locker. So, If the pump will pump more then it should handle the added 400 lb bag as the restriction is at the bag fitting.
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