I pulled the RO canister fittings off and found that the fitting going to the waste line did not have this small check valve on it but the fitting for the produced water did have a check valve built into the fitting. I swapped the fittings around so now both my waste line and produced water line have check valves and my inlet water source does not have a check valve. Everything seems to be working fine.
My guess is that the fitting for source water is not supposed to have a check valve and someone screwed up in the assembly of my unit. All is well now and it appears that I am going to like this unit.
Thanks for all the help. It was much appreciated.
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75 Gal. display with 40 Gal sump - Dual 1.5" drains, Aragonite sugar sand substrate, SWC Extreme 250 Cone Protein Skimmer, 1800L return pump, 4 AI SOL LED Lights, 250 ml pellets in a recirculating bio-pellet reactor, BRS Doser pumps for Calc & Alk, Tunze Osmolator Auto Topoff system connected Vertex Puratek RO/DI.
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