- If your proportioner is a variable ratio model, loosen the
adjustment locking knob (A) and turn the concentration
adjustment knob (B) to the maximum setting (Position 10)
If your proportioner is a fixed water to chemical ratio model
(no concentrate adjustment mechanism), disregard step 1
(note picture #2).
Check all connections and fittings for proper tightness and
turn on the water to the machine.
NOTE: THE PLASTIC FITTINGS ON THE PROPORTIONER
ONLY NEED TO BE TIGHTENED BY HAND FOR PROPER
As water flows through the water motor of the proportioner,
the actuating arm and piston at the rear of the proportioner
will move back and forth. This shaft operates the chemical
pump piston. The concentrate will start rising up the
Once the product leaving the chemical pump reaches the
main water stream, a 3-5 gallon sample can be taken of
the mixture for a concentration test (either titration,
volumetrically, or with a refractometer).
If a variable ratio
unit, you may adjust the concentration knob as needed to
give the desired product-to-water ratio. The numbers on
the graduated guide are reference marks only, and do not
represent any particular ratio. The #10 is the strongest
concentration and the #0 is the weakest. When the
proper ratio is reached, tighten the adjustment locking
knob. Finger tight is sufficient.
The proportioner must be installed in compliance with all
local plumbing codes. The proportioner water feed line must
be isolated because chemical back flow through the
proportioner is possible. An approved back flow preventer
must be installed upstream from the proportioner to prevent
possible chemical contamination of the water supply.