EcoWater Calex 11 Installation And Operating Manual page 9

Water Softener Maintenance
CLEANING THE NOZZLE & VENTURI
A clean nozzle & venturi (See Figure 17) is necessary
for the water softener to work properly. This small
unit creates the suction to move brine from the brine
tank into the resin tank. If it should become plugged
with dirt, silt, sand, etc., the water softener will not
work and hard water will result.
To get access to the nozzle & venturi, remove the
softener's top cover. Put the bypass valve(s) into
the bypass position. Be sure the softener is in the
service cycle (no water pressure at the nozzle & ven-
turi). Then, holding the nozzle & venturi housing with
one hand, turn the cap to remove it. Do not lose the
o-ring seal. Lift out the screen support and screen.
Then, remove the nozzle & venturi. Wash the parts
in warm, soapy water and rinse in fresh water. If
needed, use a small brush to remove iron or dirt. Be
careful not to scratch, misshape, etc., surfaces of the
nozzle & venturi. Also, check and clean the gasket
and flow plug(s) if dirty.
Carefully replace all parts in the correct order.
Lubricate the o-ring seal with silicone grease and put
in place. Install and tighten the cap, by hand only.
Do not overtighten, which could break the cap or
housing. Put the bypass valve(s) into service (soft
water) position.
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, following
directions on the container. Clean the resin every six
months, or more often if iron appears in the condi-
tioned water supply.
Cap
O-Ring Seal
Screen
Support
Screen
Nozzle & Venturi
Gasket
IMPORTANT: Be sure small holes
in the gasket are centered directly
over the small holes in the nozzle &
venturi housing.
*Flow Plug
(HVDC)
Nozzle & Venturi
Housing
* Install with numbered side up concave
side down. Be sure the largest flow plug
is located in the nozzle & venturi housing.
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*Flow Plug
Screen
FIG. 17