Table 4-2. Unit Troubleshooting - Cont
Test or inspection
2. CHLORINE RESIDUAL TEST INDICATES NO CHLORINE IN TREATED WATER - continued
Disconnect outlet hose assembly from solution feed pump.
Using a hose clamp, clamp disconnected end to hypochlorination unit frame.
Water under high pressure (25 to 100 psi) is used in the
hypochlorination unit. Do not stand in front of outlet hose
Open inlet shutoff cock.
Slowly open outlet shutoff cock.
Observe that water is discharged from outlet hose assembly.
If water is discharged, close outlet shutoff cock and inlet shutoff cock. Go to step 3.
If water is not discharged, close outlet shutoff cock and inlet shutoff cock. Go to step 4.
Step 3. Check that solution feed pump diaphragm is good. Refer to paragraph 4-25.
If diaphragm is good, replace solution feed pump. Refer to paragraph 4-19,
Step 4. Check that pressure gage indicates between 25 and 100 psi.
If pressure gage indication is within limits, replace flow controller. Refer to paragraph
If pressure gage indication is not within given limits, replace range adjusting valve. Refer
to paragraph 4-28.
3. HYPOCHLORINATION UNIT LEAKS WATER
Isolate water leak.
If inlet hose is leaking, replace inlet hose. Refer to paragraph 4-11,
If outlet hose is leaking, replace outlet hose, Refer to paragraph 4-11.
If inlet hose assembly is leaking, replace inlet hose assembly. Refer to paragraph 4-13.
If outlet hose assembly is leaking, replace outlet hose assembly. Refer to paragraph 4-15.