•
An ignition protected switch (U/L approved
marine duty) rated at or above 15 amps is
recommended, and must interrupt current flow
on the positive (+ red) lead.
CAUTION:
Use of "open" type switches (not ignition
protected) may cause an explosion of fuel vapors.
•
Wire size
(gauge/
M
m
2
)
is based on the distance
from the power source to the pump. The
minimum recommended wire size is
#
14 gauge
[2.5
M
m
2
]. For lengths of 20-50 ft.
[6-15
M
]
use
#
12
gauge
[4
M
m
2
].
•
The pump must be grounded to a "known
ground" (battery). The ground wire must be
the same size as the positive wire.
PLUMBING
•
SHURflo swivel barb fittings provide easy
removal if maintenance or access is required.
The fittings are designed with a "taper-seal",
creating a water tight connection when
hand-
tightened
. Always secure barb tubing
connections with properly sized stainless steel
clamps to prevent leaks. Retail pump kits
include two ¾" swivel barb fittings
(straight/
elbow)
and an adapter to connect a standard
garden hose to the pump outlet fitting.
•
Avoid any sharp radius in tubing that may kink
over time. Route tubing away from any heat
(exhaust manifolds etc.)
and fasten securely.
•
Inlet tubing
(½"I.D. min.)
from the sea-cock
valve to the pump should be rated for
vacuum. If rigid pipe is utilized, SHURflo
recommends that the pump inlet port be
plumbed with 1 ft. [.3
M
] of flexible tubing.
Standard garden hose is not suitable as inlet
tubing as it may collapse under vacuum,
reducing water flow.
•
The pump outlet port
should not
be connected
to rigid
(plastic)
pipe. Normal oscillation of the
pump may transmit through rigid plumbing
causing noise and possibly loosen or crack
components. A 1ft.
[.3
M
]
length of flexible high
pressure tubing is suggested.
