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System Does Not Shut-Off: Waste water runs all day – and Never Stops

–     Input pressure way too low (below 30psi). Not enough pressure to shut off the RO at all —> Check input water pressure. If pressure is below 30psi, need switch to Booster-Pumped RO model. Contact APEC customer service for assistance.

–    One of the shut-off valves are defective, so RO cannot shut off —> Do a shut-off test to determine which valve is defective. Do test as shown in 6)    How to Test RO’s Shut-Off Function.