27
Routine Maintenance
FIG. 91
Cap
O-ring Seal
Screen Support
Screen
Gasket
*Flow Plug (HVDC)
Housing
Ferrule
Nut
Cone Screen
*Flow Plug
*Install with lettered
side up, concave
side down.
Nozzle & Venturi Disc
IMPORTANT: Be sure small hole in the gasket is cen-
tered directly over the small hole in the nozzle & ven-
turi housing. Be sure the numbers are facing up
CLEANING THE NOZZLE & VENTURI
A clean nozzle & venturi (See Figure 91) is a necessi-
ty for the water softener to work properly. This small
component creates the suction to aspirate (bring air
into) the mineral tank during recharges. If it should
become plugged with sand, silt, dirt, etc., the water
softener will not work, and hard water will result.
To get access to the nozzle & venturi, remove the
water softener’s top cover. Put the bypass valve(s)
into the bypass position. Be sure the water softener’s
main valve is in “service” position (no water pressure
at nozzle & venturi). Then, holding the nozzle & ven-
turi housing with one hand, unscrew the cap. Do not
lose the o-ring seal. Lift out the screen support and
screen. Then, remove the nozzle & venturi disc, gas-
ket and flow plug. Wash the parts in warm, soapy
water and rinse in fresh water. Be sure to clean both
the top and bottom of the nozzle & venturi disc. If
needed, use a small brush to remove iron or dirt. Do
not scratch, misshape, etc., surfaces of the nozzle &
venturi.
Gently replace all parts in the correct order. Lubricate
the o-ring seal with silicone grease and locate in
place. Install and tighten the cap by hand, while sup-
porting the housing. Overtightening may break the
cap or housing. Put the bypass valve(s) into “service”
position.
Recharge the softener to reduce water level in the
tank. This will also assure that the softener is com-
pletely recharged and ready to provide softened water
again. Check the water level in the tank by looking
down the brinewell. If the water level does not drop
after a recharge, the problem has not been resolved.
RESIN BED CLEANING
If the water supply contains clear water iron, regular
resin bed cleaning is needed to keep the bed from
coating with iron. Use resin bed cleaner, available
from your dealer, following directions on the container.
Clean the resin every six months, or more often if iron
appears in the conditioned water supply.
