3M FM DWS 1500 User Manual

Replacement Cartridge Change Instructions

FM DWS 1500

Turn Clockwise To

Shut Off

1. Close the feed water valve and lift up the faucet handle.

Wait approximately 10 seconds for the water pressure
to depressurize. Return faucet handle to the off
position.

2. Twist the filter cartridge 1/4 turn counterclockwise (as

viewed from the bottom) so that the ears on the
cartridge are able to disengage from the head. Firmly
pull the cartridge downward to remove it from the
head.

3. Remove the new filter cartridge from its sanitary sealed

wrapper. (Double check to see that it is the correct
replacement filter cartridge by comparing the labels.)

4. Using either tap water, food grade silicon lubricant or

glycerine, lubricate the O-ring seals to make cartridge
insertion easier. Do not use petroleum jelly.

Turn Counterclockwise

To Turn On

5. Line up the cartridge ears, insert the cartridge and push

it up into the head until it is fully seated. Twist the
cartridge 1/4 turn clockwise to lock it into place.

6. Open the feed water valve and carefully check for

leaks.

7. Lift up on faucet handle to purge air and carbon fines

from the new filter cartridge. Flush 3 gallons through
system before use (approximately 6 min).

NOTE: It is normal to have small air bubbles present in the

product water for 1-2 days after installation and filter
changes. This may result in cloudy filtered water.

It is recommended that car tridg es be replaced every 6-12 months, depending on local water conditions and use.

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System Location (Fig.1)

Outlet Fitting w/

Flow Control

To Faucet

Ball Valve

From Feedwater Source

Allow 2” Min.
Clearance

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