Marine Heads And Waste /Holding Tank; A Toilets : Vac U Flush - Bayliner Que Sara 1997 Operating Manual

MARINE HEADS AND HOLDING TANK
This vessel has two heads, each with an electric toilet. It has one holding tank with a
capacity indicator in the 24 volt cabinet.
T HE VACU-FLUSH HEADS
These premium heads are easy to use, odor free, and very reliable. They work with two
separate vacuum pumps and vacuum accumulator tanks. A vacuum is maintained in the
tank until the head is used, when the waste matter in the bowl is sucked out of the head
by the vacuum, then it is pumped through the system by the head pump, which then also
pumps up a vacuum again. Note that it is this rush of the head's contents caused by the
accumulated vacuum that is important to the head's operation! This sudden rush causes
any solid material in the waste stream to be shattered as it passes through the specially-
shaped orifice in the bottom of the head. For this reason, proper head operation requires
that the head pedal not be held down for long periods if time.
The head uses about a half pint of fresh water from the ship's supply with each flush.
The head is operated by a the pedal to the left of the head base (as you face the head),
and operation is as follows:
TOILET OPERATION
1) Before using the head if the waste will be solid, lift the pedal to add water to the bowl;
2) Use the head;
3) Step on the pedal just long enough to hear the "whoosh" as the head is evacuated and
a small amount of water rinses the bowl - - - about five seconds!
4) Releasing the pedal, if you wish to flush again, wait at least twenty seconds or so
(until you hear the head pump stop) before flushing again.
As the pedal is released, the ball-valve at the bottom of the head seals it so that the
vacuum can be pumped up, the pump will then stop, and the head is again ready for use.
If the head pump runs often or steadily between flushes, it is likely that the seal at the
July 21, 2012
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