Recirculating Toilet - GMC 1977 motorhome Operating Manual

SOLUTION :
a. The vacuum breaker - if the vacuum
breaker leaks when flushing the toilet, re-
place the vacuum breaker. (Toilet must
be removed .)
b. If the vacuum breaker leaks when the
toilet is not in operation, replace the
water control valve.
c. Leaks at the bowl to mechanism seal-re-
move mechanism, and replace mechanism
seal .
d. Leaks at closet flange area-check front
and rear closet flange nuts for tightness.
If leak continues remove the toilet, check
the closet flange height. The height should
be between 1/4" and 7/16" above the
floor. Adjust closet flange height accord-
ingly and replace closet flange seal.
3 . PROBLEM:
Foot pedal operates harder than normal
or blade sticks .
SOLUTION :
Dry blade and apply a light film of Sili-
cone spray to blade .
4 . PROBLEM:
Toilet fails to flush with pedal depressed .
CAUSE:
Ball valve sheared off due to trying to
flush toilet when water is frozen in valve.
SOLUTION :
Replace ball valve . (Toilet must be re-
moved.)
RECIRCULATING TOILET
Routine maintenance is not required on the
recirculating toilet other than recharging which
is described in OPERATION OF LIVING
AREA FACILITIES section earlier in this man-
ual . If a problem occurs, check and make the
appropriate correction.
104
1 . PROBLEM:
Toilet wobbles .
CAUSE:
a. Closet retaining nuts not tight .
b . Mounting brackets not seated to floor .
c. Closet flange too high.
d. Mounting surface uneven .
SOLUTION :
a . 8a b. Tighten closet retaining nuts .
c. 8s d. Check closet flange height by laying
2. PROBLEM:
straight edge across flange and meas-
uring gap between straight edge and
floor at four (4) leg locations (1 /4
to 7/16 inch is recommended) .
Flushing action is weak or noisy .
CAUSE:
a. Pump is running backwards (reversed
wiring polarity) .
b. Cycling unit without enough charge water .
c. Pump damaged by continuous dry opera-
tion .
SOLUTION :
a. The black wire is positive (hot) and the
white wire is negative (ground) .
b. Charge to proper level (3 gallons) . Fill to
charge level (c) on indicator lens .
c. Replace pump assembly .
3. PROBLEM:
Lack of capacity .
CAUSE :
" Too much charge water .
SOLUTION :
Use three gallons only to charge . Fill to
charge level (c) on indicator lens.