INSTALLATION (continued)
PLUMBING
The solenoid valve/siphon breaker should be positioned
a minimum of six inches above the hose connection at
the back of the toilet bowl (at all angles of heel and trim)
and located as close to the toilet as possible. It should be
located where an occasional drop or two of water from
the siphon breaker will not adversely affect nearby equip-
ment or supplies. It must be installed in a vertical position
with the hose barb connections pointing down. The sole-
noid valve/siphon breaker bracket should be secured to
a solid mounting surface with four screws. If the valve
assembly is attached to a wood surface, 3/8" (10mm)
long screws are generally adequate to support the
weight of the valve assembly. If desired, the valve
assembly may be installed inside a cabinet or locker to
conceal it from view of the vessel
’
s occupants.To provide
a clean sanitary appearance inside the head area, a six
foot section of smooth white hose is provided with the toi-
let to connect the toilet bowl spud fitting to the siphon
breaker outlet hose barb.
The solenoid valve inlet hose barb is then connected
with 1/2" (13mm) reinforced vinyl hose suitable for
pressurized water to the tee fitting installed in the water
system line. All pressurized water system connections
should be secured with stainless steel band type hose
clamps. The 3/4" hose connecting the siphon breaker to
the bowl should be secured with a band clamp at the
siphon breaker to prevent it from being accidentally
dislodged but generally does not need a hose clamp to
secure it to the bowl spud fitting unless desired for added
security.
The discharge port includes a 1" (25mm) hose barb and
should be plumbed with 1" (25mm) hose to an on board
holding tank or, if appropriate, to an overboard discharge
through hull. A 1" (25mm) to 1-1/2" (38mm) barbed hose
adapter is provided to adapt a 1" (25mm) discharge hose
W
!
to 1-1/2" (38mm) hose, if desired. The discharge plumb-
ing should be kept as short as possible and bends in the
discharge hose should be kept to a minimum.
If the toilet is below the water line and is plumbed to an
overboard discharge through hull, the discharge
plumbing must include a vented loop positioned so it
remains above the water line at all angles of heel and
trim. Total discharge head should not exceed 4 feet
(1.2m). To retain water in the bowl, the discharge hose
should be looped upward about eight to ten inches
above the base of the toilet and as near to the toilet as
can be practically accomplished without creating an
unsightly plumbing situation.
