Waterite Micronizer W-988 Manuel D'installation

Installation of Replacement Parts
The Waterite Micronizer consists of a high impact Celcon®
plastic body containing two water passages. The water passage
closest to the check valve (2) contains built-in convergent and
divergent cones forming a venturi. The venturi causes air to be
drawn into the water stream when water is flowing.
The second water passage acts as a by-pass. The percentage
of water flow allowed through the by-pass assembly is regulated
by the valve gate (5) and gate retainer (6) assembly. This in
turn regulates the amount of air drawn into the water stream
through the venturi. Turning the valve gate screw clockwise
forces more water through the venturi passage. This in turn
causes more air to be drawn into the water stream. In the
event that parts must be replaced, this can be accomplished by
following a few simple instructions:
1. To replace die rubber check valve (2), wet the check valve
with water ONLY and install it in the main body. Thread
the cap down snugly by hand. Do not over tighten.
Failure to lubricate the rubber properly will cause the valve
to twist inside the cap and will result in leakage of water
through the valve. If this should occur, remove the valve,
relubricate, and install it.
2. To replace the o-ring or valve gate/ gate retainer assembly,
start by lubricating the rubber o-ring with water or a silicone
oil. Carefully insert the o-ring into its seat in die bottom of
the hole in the main body. Thread the valve gate fully into
the gate retainer. Thread the gate retainer into the main
body by hand to a snug fit. With the use of a suitable tool
(wrench or pliers), turn the gate retainer another 1/4 turn
into the main body. Do not over tighten.
Note: To prevent leakage at the 1" NPT threads, use Teflon
tape during the assembly of the Micronizer to the plumbing
system. Care should be taken when wrapping the tape over
the threads to ensure that no tape enters the Micronizer and
blocks the venturi.
W-988 Micronizer Parts
1 Knurled Cap, Plastic
2 Check Valve M-005
3 Main Body – blue M-988
4 O-ring M-011
5 Valve Gate, Stainless
6 Gate Retainer, Stainless
Waterite
1. Start Up Procedure
See figure 1 below to review a typical air injection system
configuration. The air should first be flushed from the filter tank
and the filter media conditioned.
a. Check to verify that die Micronizer Adjusting Screw is in the
b. Adjust the pressure switch to ensure a 20-psi differential
c. Partially close valve D, turn on the pump, thereby filling the
d. Fully open valve D and backwash until the water to drain
2. Adjusting the Micronizer
a. The proper adjustment of the Micronizer to provide a
b. Close valve D. Close down the Micronizer Adjusting Screw
c. Open valve D and open a faucet in house. Then control
d. Re-open valve D until the pump starts, then immediately
P/N
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e. If all the iron is not being removed at the 30% setting of the
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® Model W-988
Installation of your Micronizer in a
Private Well Water System
fully open position (turned fully counter-clockwise).
between cut-in and cut-out, (example: 20-40 psi) for the
pump.
pressure tank and slowly filling the filter tank until water
overflow appears at the backwash.
appears free of air. Cycle to "Backwash-Rapid-Rinse"
several times to completely remove the air and orient the
filter bed, then turn the control handle to "Service".
colloidal suspension of the iron is a final and important
step.
three turns by rotating it clockwise.
the water flow with valve D. Drain water from the pressure
tank until the pump starts, then immediately turn off Valve
D. Using the second hand on a watch, time the pump-
up cycle (i.e. the time from the low pressure cut-in of the
pump to the high pressure cut-out.) Assume a time of 99
seconds.
shut Valve D. Determine the time of air-draw at the Suction
Nozzle. This time should be 30% of the total pump-up
time, (i.e. 30 seconds). If the air draw time is more than
30 seconds, turn the Adjusting Screw (counterclockwise)
slightly. If the draw time is less than 30 seconds, turn the
screw clockwise. Determine the total pump time after each
adjustment, since this time will change as the Adjusting
Screw is being reset.
Adjusting Screw, after 4 weeks, increase the air draw time
to 35% of the total pump-up time (35 seconds).