Table 3-3. Preventive Maintenance Checks and Services for ROWPU System (Continued)
Q - Quarterly
S - Semiannually
A - Annually
CHECK FOR AND HAVE
IS NOT READY/
REPAIRED OR ADJUSTED
B D A D W M Q S A
b. Check fuse on metering pump. Replace if
c. Make sure coagulant and inhibitor drums
each contain at least 2 to 3 gal of liquid. If
level is low, disconnect metering pump
hoses and replace drums as follows:
Avoid exposure to coagulant and inhibitor.
Wear safety goggles or face shield and rub-
ber gloves when working around chemicals.
If chemical Is swallowed, do not Induce
vomiting. Drink water and seek medical
attention. If chemical gets In eyes, flush
with water and seek medical attention. If
chemical contacts skin, wash with soapy
Pump section hose enters drum through
the larger of two plastic lungs which are
screwed into the drum.
1) Remove suction hose, with suction
foot valve and weight attached, from
Drum breather (vent) hose enters drum
through smaller plastic lung and hangs
2) Remove breather hose.
3) Remove empty drums and replace
with full drum.
Carefully read labels on drums to insure
that proper drum is being connected.
Change 1 3-7