12
TROUBLESHOOTING GUIDE
11. Continued
12. Pump emits odor.
13. Blockage between toilet
and vacuum tank.
d. Discharge line blocked causing
back pressure.
e. Plugged or defective duckbill
valve.
f. Plugged vent in holding tank.
g. Gear motor worn or defective.
h. Pump bellows clogged with
tissue.
a. Loose or defective hose
connection on pump.
b. Loose intake or discharge fittings
on pump.
c. Worn, torn or punctured pump
bellows.
a. Collapsed vacuum line.
b. Sharp bends or kinks in vacuum
line.
c. Improper operation of toilet.
d. Flushing foreign objects down
toilet.
d. Check to be certain seacocks
and in-line valves are in proper
position. Disassemble and clean
discharge line.
e. Disassemble and clean duckbill
valve. Replace parts or valve if
necessary.
f. Disassemble and clean.
g. Check motor and replace if
necessary.
h. Remove and clean bellows
assembly. (When flushing toilet,
use of additional water may
alleviate this problem.)
a. Tighten connections or replace
hose and make new
connections.
b. Tighten intake or discharge
fittings on pump. Replace
nipples or adapters if necessary.
c. Replace pump bellows.
a. Inspect vacuum line for
collapsed condition and replace
line.
b. Inspect vacuum line for kinks or
bends with less than 5"
(12.7mm) radius on all bends.
c. Make sure toilet is being
operated correctly and each
person using toilet knows correct
operating procedure.
d. DO NOT flush any non-
dissolving items (i.e. sanitary
napkins, facial tissue, wet
strength tissue, paper towels,
etc.) or excessive toilet tissue
down toilet. Biodegradable
SeaLand brand toilet tissue is
best.
Problem
Possible Cause
Service Instructions