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Troubleshooting Guide, Shurflo Systems
Do the feed pumps
run steadily?
Yes
No
Is brine water
flowing
overboard?
Check for air leaks in
the feed pump suction.
Open pressure relief
knob to bleed air lock
Is the System producing
Product water?
No
Yes
Refer to: 6 Clark Pump
Checkout
Is the product salinity
High?
Yes
No
Refer to: 3 Poor Product
Quality
Refer to: 7 Shurflo pump
won’t run and 11 High Feed
Pressure
Is the product flow and
feed pressure the same on
both strokes of the Clark
Pump?
No
Yes
Is the system producing
its rated product water
output?
Yes
No
IF THE PROBLEM IS:
Bad smelling Product
refer to 4 Bad Smelling
Product
Perform this flow test:
“8 Product Flow Test”
Clark Pump Squealing:
Refer to 6 Clark Pump
Checkout
2
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