Flow - Abundant Flow Water Systems ROFK5 Installation & Service Manual

©Abundant Flow Water Systems, Inc. 2009
Tracing Water Flow
Note: Tank valve needs to be shut off unless otherwise indicated. When tracing water flow, shut feed
water valve off and, remove line to be checked from fitting. Turn feed water valve back on, ensuring it is
fully open before checking flow. Repeat this process with each step until the problem is found.
1. Check feed water line (red) connected to the inlet side of the clear housing on the bottom of the
system. Flow should be strong and forceful. If not, ensure water supply is on and feed water valve is
open. If water supply is on and feed water valve is open and still no water, replace the line connecting
the system to the feed water valve.
2. Check flow on line coming from 3
filters. If not, verify the middle filter is installed with the gasket end facing up. If installed correctly and
flow is still significantly reduced, replace the filters.
3. Check flow of water connecting the auto shut off (the white block behind the membrane with 4
connections) to the single fitting end of the membrane. If flow is significantly reduced or none at all,
the auto shut off valve is blocking flow. Open the faucet to relieve any pressure on the system, and
check again. If flow is still impeded, the auto shut off is worn out and needs replaced.
4. Check the waste water (yellow) line before the flow restrictor (white cylinder about 3 inches), there
should be a steady flow of water. If there is no water flow and water is reaching the membrane, the
membrane is fouled and needs replaced.
5. Check flow after the flow restrictor. Flow should be reduced, but should still be coming out in a
steady stream. If flow is the same or if flow is completely gone, the flow restrictor is defective and
needs to be replaced.
6. Check the line coming from the check valve on the membrane to the auto shut off valve (refer to the
connection diagram if you are unsure where the check valve is). You should get a steady drip or a
slow stream. If there is no flow, remove the check valve (simply unscrew counterclockwise) and test
again. If flow is achieved by removing the check valve, replace the defective check valve. If removing
the check valve does not solve the problem, either your pressure is too low (common on new
installations, 40psi minimum is required) or the membrane is fouled (more common on older
systems).
7. Systems with UV ONLY: Check the line running from the auto shut off valve to the UV filter. Flow
should be about the same here as it was coming out of the membrane. If not, the auto shut off valve
is stuck and not allowing water through, replace the auto shut off valve.
A. Check flow coming out of the UV filter, if flow is reduced there is an obstruction in the UV housing.
Unplug UV before removing housing and checking for obstructions. If flow is fine, skip to step 9.
8. Check line connecting the auto shut off to the T-fitting on the next filter (either inline DI or post filter).
Flow should be about the same here as it was coming out of the membrane. If not, the auto shut off
valve is stuck and not allowing water through, replace the auto shut off valve.
9. Ensure tank ball valve closed and check the flow of water after each of the inline filters. (inline filters
may include the inline DI filter, post filter, and inline pH filter, depending on your system.) Remove the
line after each filter and check the water flow. Flow should be close to the same through each filter as
it was coming from the auto shut off valve. If significantly reduced flow is found after one of the filters,
replace the filter.
10. Remove the line connected to the faucet (blue) and check flow there. If flow is restricted, replace the
tubing between the final filter on the system and the faucet. If flow through the line is fine but there is
no water from the faucet, replace the faucet.
rd
(white) housing. Flow should be close to the same as before the
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Revised 9/09