To Operate The Vacuflush Head - Regal 3760 Owner's Manual

The Vacuflush® head uses a combination of vacuum
suction and water flow from the fresh water tank to clear
the head of waste. Before using the Vacuflush system
turn the head circuit breaker to the "on" position at the
main DC control panel.
Make sure that there is always a small amount of water
left in the toilet head bowl. This acts as a trap and will
reduce unwanted odors.
Before leaving the boat for an extended period, flush the
head for at least 10 seconds. This ensures that waste has
cleared the sanitation transfer hose and has entered the
holding tank.
Waste left within the transfer hose tends to dry out and
harden. This could restrict the internal size of the hose
and hamper future operation. The system components
including the hose are formulated for the transfer of
sanitary waste only. Do not allow the following items
in the system: Strong acid or caustics such as drain openers,
petroleum solvents or fuels, alcohol based products such as antifreeze
and pine oil products along with sanitary napkins and baby
diapers.
System vacuum is monitored by a switch located on the
outside of the vacuum generator's tank. When the switch
senses a vacuum drop, it automatically signals the pump
to energize and bring the vacuum back to the operating
level. This is normally a two minute process. In a properly
operating system, the stored vacuum will "leak" down
between flushes, causing the vacuum pump to run for a
short period. This is normal. The pump should not run
for more than once every (3) hours after the last flush.
To operate the Vacuflush® head:
1. Activate the head breaker on the main DC panel.
2. Activate the fresh water system breaker on the main
DC panel since the fresh water tank is the main water
source for the Vacuflush® system.
3. Lift the toilet lever until the desired water level is
reached. Generally the system requires more water for
solid liquid waste. See figure 1.
4. To flush the toilet, press the flush lever in one swift
motion down to the floor until contents in the bowl
disappear. A distinct popping noise is normal when
flushing action begins and the vacuum seal is broken. Hold
the lever down for at least 3 seconds. If flush lever is
accidentally released before waste clears the bowl, do not
try to flush toilet again until vacuum pump stops running.
A small amount of water should remain in the bowl after
flushing. See figure 2.
5. Do not dispose of sanitary napkins or other non-
dissolving items in the toilet. Do not attempt to flush facial
tissue, wet strength tissue, paper towels, or excessive
quantities of toilet paper down the toilet. These types of
items do not dissolve and cause plugging of the system.
See figure 3.
6. Make sure all passengers are aware of the toilet
operation.
7. If using holding tank deodorant, use the approved ones
for the system.
8. See the maintenance section for cleaning and routine
inspection items.
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Chapter 7