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Installing the Plumbing
Use of flexible, braided hose rated for high pressure and of a size corresponding to that of the included port
fittings is recommended. Do not use rigid or plastic piping to connect pumps as this transmits vibration and stress and causes noisier
performance. Attach the hose firmly to these fittings using a proper hose clamp. Insert the fittings o-ring side first into the pumphead and then
push the retaining clips in to secure the fittings. A Flojet 40 Mesh strainer should be installed on the intake side of the pump. The pumphead will
have an arrow on it indicating flow direction. The vast majority of pumps are left to right as shown below.
Strainer
WARNING SAFETY PRECAUTION: Prior to activation, ensure that the hose clamps, discharge hose and
retaining clips are properly connected and fully secure.
Connecting to a Power Source
Proper wire gauge and fuse size based on the maximum
current draw, the wire length, and any relevant
regulatory standards must be used. Current draw and
fusing information is shown on the pump label. Correct
connection of the positive and negative leads to the
power source is shown below.
These pumps come with wire leads that are either 14,
16, or 18 AWG (2.5mm2, 1.5 mm2, or 1 mm2). The wire
gauge can be found printed on the leads. Below is a guide
to use when extending the wires. Do not use a smaller
diameter wire than the pump's leads.
Recommended Wire Size
Total Wire Length (positive to pump to ground) — feet (meters)
0 – 6 ft
(0 – 1.8 m)
16 AWG
(1.5 mm2)
Operation
Ensure that the intake side of the line connected to the pump inlet is submerged in water. With power on and the discharge line open,
allow the pump to prime and purge air from the system. If equipped with an on-demand pressure switch the pump will turn on when
the discharge line is open and will turn off once the line is closed and the
switch off pressure is reached. When finished, manually turn off the power
to the pump. Note that the pump is intended for intermittent duty only. If
allowed to overheat the thermal protection will shut it off until sufficiently
cooled, at which point it will automatically re-set.
Inlet/Outlet Port
Retaining
Clips
6 – 10 ft
(1.8 – 3 m)
14 AWG
(2.5 mm2)
Initial Startup
Inlet/Outlet Port
Red (+)
10 – 15 ft
(3 – 4.6 m)
(4.6 – 5.5 m)
12 AWG
(4 mm2)
3
Typical Flow Direction
Black (—)
Fuse
Switch
15 – 30 ft
(5.5 – 12.2 m)
10 AWG
(6 mm2)
Demand Off
Demand On
Battery
30 – 40 ft
8 AWG
(10 mm2)
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