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Filter Replacement Procedure
Step 1:
Shut off the water to the filter housing by turning the bypass valve to “BYPASS” or “OFF”
Step 2:
The bowl of the system can be removed by turning it clockwise (see Figure 1). Use the supplied filter
wrench to loosen the housing.
Step 3:
Remove the old filter and discard.
Step 4:
Clean the filter housing with a mild soap solution and rinse with water. Check O-ring and lubricate with
water soluble lubricant.
NOTICE
Petroleum based lubricants (such as Vaseline®) must not be used
Step 4:
Replace filter.
Step 5:
Reinstall by turning the filter bowl counter-clockwise (see Figure 1) onto the lid. Make sure O-ring is
properly seated.
NOTICE
Hand tighten housing. Wrench should only be used to loosen housing.
Step 6:
Turn bypass valve back to “FILTER”
Step 7:
Check for leaks. Monitor unit for leaks for 24 hours after filter replacement.
Troubleshooting
Problem
Cause
Solution
Filter bowl has no water in it. Water is not turned on at Main
Check that the water is on at Main
Valve turned to “BY-PASS” or
“OFF”
Make sure valve is turned to the “FILTER” posi-
tion.
Leaking at the bowl.
O-Ring kinked or not seated.
Check / Replace / Re-seat O-Ring.
Bowl not tightened enough.
Tighten bowl.
Leaking at the valve fit-
tings.
Improper installation / Not enough
plumber’s tape on fitting
Replace or repair fittings.
Leaking at top of valve (lid).
Faulty lid.
Call Watts at 1-800-752-5582 for a replacement
Low water flow / pressure
Filter clogged
Replace Filter
