Table 3-2. Troubleshooting (ROWPU) (continued)
TEST OR INSPECTION
b. After 10 minutes of backwashing, turn knob counterclockwise to C/R (conditioned
Allow filter to rinse for 2 minutes.
c. After 2 minutes of conditioned rinse, turn knob counterclockwise to SERVICE
position. Backwash is now complete.
d. Report defective timer to unit maintenance.
15. MULTIMEDIA FILTER VENT LINE DOESNT DISCHARGE WATER.
Check vent line for obstruction.
Remove obstructions from vent line.
16. CHEMICAL FEED PUMP FAILS TO PRIME.
If pump fails to prime after setting control knob to max. (Model No. 6001 should read 10;
Model No. 600-3 should read 8.5). Check the plastic suction line from the container to the
a. If water level in suction tube does not reach the pump body or the water is not
passing through the suction or discharge ball valves, disconnect the suction and
discharge tubes from the valves.
b. (Model No. 600-1) Remove nuts and studs from pump head. Noting proper
assembly of valve parts, dissemble and look for any foreign matter such as tape,
dirt, etc. which blocks water passage. Remove foreign matter.
c. (Model No. 600-3) Unscrew tubing nut from pump head. Remove four hex-head
capscrews from diaphragm body. Inspect for and remove any foreign material
between ball and valve seat.
d. Assemble valve parts and reconnect suction and discharge tubes.
17. PRODUCT WATER TOTAL DISSOLVED SOLIDS (TDS) LEVEL IS ABOVE 1500 PPM.
Check product water from each pressure vessel as follows:
a. Startup ROWPU as normal (para. 225).