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TROUBLESHOOTING
Leaks:
...between cap and bottom of filter housing
Turn off water supply valve and turn on drinking water faucet
to release pressure in system. Remove bottom of housing.
Clean o-ring and o-ring groove (located directly beneath
threads of housing). Lubricate o-ring with silicone grease and
replace securely into groove. Screw bottom of housing onto
cap and hand-tighten. DO NOT OVER-TIGHTEN. Turn on water
supply valve and check for leaks.
...on system inlet/outlet connections
Turn off water supply valve and turn on drinking water faucet
to release pressure in system. Remove tubing from fitting
(see NOTE under Step Six: Connecting the Supply Adapter on
p.4) and make sure end of tubing is cut squarely and free of
scratches or burrs. Reinsert tubing into quick-connect fittings,
making sure to push securely until tubing hits a hard stop.
Turn on water supply valve and check for leaks.
...on supply adapter connection
Turn off water supply valve and turn on drinking water faucet
to release pressure in system. Loosen leaking threaded fitting
on supply adapter or pull out leaking tubing from fitting.
Inspect to see if plastic tubing is scratched or supply adapter
was properly attached. If tubing is scratched, cut off 1/2 inch
to 5/8 inch and reinstall per Step Six: Connecting the Supply
Adapter. Reconnect tubing or tighten compression nut with
fingers, then tighten nut snugly 1/2-turn with wrench. Turn on
water supply valve and check for leaks.
...on faucet/tubing connection
Turn off water supply valve and turn on drinking water
faucet to release pressure in system. Loosen and remove
compression nut fitting on faucet stem. Make sure tubing
is inserted firmly into end of faucet stem, then retighten
compression nut with fingers until secure then tighten 1 turn
with a wrench. Turn on water supply valve, then turn off faucet
to check for leaks.
If leaks persist, or if there are other leaks on system,
NOTE:
turn off water supply. Call our technical support
department at 800.279.9404.
Low Water Flow
1. Check flow at faucet. The US-1500 system should fill a
gallon jug in approximately 2 minutes. Flow rates will vary
with individual household water pressure.
2. Check filter cartridge installation. Make certain both filter
cartridges are properly oriented in filter housings (See
Filter Cartridge Replacement).
3. Check to be certain that the water supply valve is
completely open (turn handle on valve counter-clockwise
as far as it will go).
4. Check flow through empty system. To do this, turn off
water supply valve and turn on drinking water faucet to
release pressure in system. Then remove filter cartridges
from housings and screw housings back onto caps. Turn on
faucet to check flow through empty system. Flow should be
about one to two gallons per minute. If flow is less than 0.4
gallons per minute, call Technical Support at 800.279.9404.
5. If flow through empty system is adequate, place one filter
cartridge in system at a time and check flow to make sure
cartridge is not clogged. Replace clogged cartridge
if necessary.
REPLACEMENT PARTS
1
2
3
4
5
6
7
*image may be different than actual faucet
For replacement parts, contact your nearest Pentair
distributor or call 800.279.9404.
PENTAIR
US-1500 Monitored Dual Filtration System Installation and Operating Instructions
155584-44
P-250 (Cartridges sold only as a set)
153126
151231
O-ring (OR-233)
244960 *
Lead-Free Faucet
143431
Water Supply Adapter
150424
Housing Wrench (SW-5)
144721
Circuit and Probe (Not Shown)
4
6
5
White housing
3
1
2
• 7
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