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1
EVAC
Commercial Marine Equipment
V
V
V
V
VA
A
A
A
ACUUM
CUUM
CUUM
CUUM
CUUM T
T
T
T
TOILET
OILET
OILET
OILET
OILET
TROUBLE SHOOTING
Date:
Doc.
25 Jan 2005
4:01007C
5979301
EVAC 90, SQUATTING TOILET
Trouble
Squatting toilet is discharging
contineously (discharge valve
open).
Bowl is not emptying, but water
comes (high water in bowl).
No water, but otherwise flushing
or too little rinsing water
Toilet is overflowing.
Toilet does not flush.
Cause
• Foreign object in the bowl or in the
discharge valve
• Blocked bowl
• Blocked discharge valve
• Loose / clogged hoses
• Water shut-off valve closed
• No water pressure
• Filter in water valve full of dirt
• Flush ring loose
• Flush ring clogged
• Strainer blocked up
• Water valve jammed in open
position
• Bowl clogged or discharge valve not
operating
• Misuse (buckets of water thrown in
the bowl)
• Too low vacuum (less than 30%) to
flush
• No vacuum or low vacuum (less
than 30kPa)
• Clogged mini check valve
• No impulse from flush knob
• Jammed control mechanism
Remedy
• Shut off the problematic branch line
valve.
• Remove foreign object.
• Change discharge valve.
• Check and if necessary change the
control mechanism.
• Clean bowl / clean valve / connect
vacuum hoses.
• Connect hoses
• Open valve
• Provide water pressure
• Clean filter
• Connect flushing ring
• Clean flushing ring
• Clean strainer
• Close water shut-off valve
• Clean / change water valve nozzles,
springs, rubbers
• Discharge bowl, valve, piping
with by-pass or / hose connections
• Check vacuum level, remove
blockage in piping
• Clean / change mini check valve
• Check hoses and push button. The
triangle must face upwards and the
tip of the triangle must point towards
the sewage piping.
Shut-off valve
Strainer
Vacuum breaker
Pneumatic push button
Water valve
Discharge valve
Vacuum hoses
Control mechanism
Water supply hose
