US Water Systems FSF-150, Owner'S Manual, Page: 10 / 28

10
Filter Preparation
6) Lubricate the distributor O-ring and the tank O-ring on the bottom of the control valve.
Then install the upper basket on the bottom of the valve by lining up the tabs then turning
the basket clockwise to lock it in place. Place the upper basket over the distributor tube
and push the valve on the tank. Thread the valve on the tank by turning it clockwise. Be
sure not to cross-thread the valve on the tank. Tighten the valve hand tight, then snug it
further by tapping it with the palm of the hand. DO NOT use tools to tighten the valve or
damage could occur.