ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
0011 00
OPERATOR INSTRUCTIONS
DESCRIPTION & USE OF OPERATOR CONTROLS & INDICATORS
CHEMICAL INJECTION PUMP CONTROLS
The TWPS uses three identical chemical injection pumps, one for each of three different purposes. The
controls on each of the three pumps are the same. The three pumps are:
- Sodium Bisulfite Chemical Pump: Dispenses a measured amount of Sodium Bisulfite into the raw
water before it is discharged into the MF feed tank when the raw water contains chlorine in order
to neutralize the chlorine.
- Antiscalant Chemical Pump: Dispenses a measured amount of Antiscalant into the filtrate to
inhibit salt scale formation on the RO membranes.
- Calcium Hypochlorite Chemical Pump: Dispenses a measured amount of Calcium Hypochlorite
into the product water before it is discharged to the distribution tanks to kill and prevent microbial
growth and contamination in the product water.
1
2
3
CP-2
CP-1
CP-3
ANTI-SCALANT
BISULFITE
HYPOCHLORITE
Table 7. Chemical Injection Pump Controls.
ITEM
CONTROLS
FUNCTION
1
FOUR FUNCTION VALVE.
This valve provides Pressure relief, priming, backpressure and anti-siphoning
function.
2
SPEED CONTROL/ON OFF KNOB.
Turns pump on and off and provide adjustment of the percent of maximum
strokes per minute. Turn clockwise to increase and counter clockwise to
decrease strokes per minute.
3
STROKE CONTROL KNOB.
Provides adjustment of the percent maximum of solution discharged during each
pump actuation. Turning the knob clockwise increases solution displacement and
counter clockwise to decrease.
0011 00-10
