IM 25.055AC UA (C/6-01)
AUTOMATIC CHLORINATOR - 3000LB/24HR
8
suspected, inspect the O-rings and replace them if there is any doubt about
their condition.
2.9 Injector Suction Connection
Except in those instances where the injector is installed in the control
module, a line must be provided to carry the gas from the module to the
injector. The piping must be sized as required to obtain six inches of
mercury minimum vacuum at the module.
2.10 Injector Water Supply
The injector requires a supply of reasonably clean water. Equip the water
supply up to and including two-inch sizes with a strainer, as indicated in the
Typical Installation drawing in this section. The pressure and quantity of
water required varies from one installation to another.
2.11 Drain
Two-inch bellofram type injectors used for start-stop operation require a
1/4-inch ID drain hose to dispose of a short spurt of water when the injector
is operated. Run the drain hose to a suitable floor drain or waste pipe.
For one-inch and 3/4-inch fixed throat injectors, no floor drain is required;
however, a drain is always desirable to facilitate injector service.
2.12 Injector Discharge
For 3/4-inch fixed throat injector, the tailway (beige color) is designed to
accept 3/4-inch polyethylene tubing or 3/4-inch threaded pipe connection.
NOTE: For pipe thread connection, do not cut off the serrated sec-
tion.
For one-inch fixed throat injectors, a rigid PVC pipe or USF/W&T solu-
tion hose is required between the injector discharge and the point of appli-
cation. The pipe size depends on the size of the throat and tailway used in
the injector, the operating water pressure, and length of the solution line.
Solution hose may be connected directly to the injector tailway. If rigid
PVC pipe is used, a piece of straight pipe at least eight inches long should
be coupled to the end of the injector tailway before any elbows, tees, or
Saunders valves are used. This is to prevent any flow disturbances that
could affect the hydraulic performance of the tailway connections (see
Dwg. 25.200.003.010).
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