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INSTALLING THE VARIPUMP
Varipump can be installed either dry, as part of a gravity fed filtration system,
or submersed in water, as part of a pump fed system. When installing in
gravity fed systems ensure unions are fitted (not supplied) to enable removal of
the pump for cleaning and maintenance. We recommend using Evolution Aqua
unions (EA CODE: K82-76-55) for the 10,000 model. Use unions
(EA CODE: K82-76-66) for the 20,000 and 30,000 models.
INSTALLING THE VARIPUMP - GRAVITY FED
1. The pump suction line should be not smaller than 1½" (40mm imperial)
or 50mm true metric.
2. The suction line is to have as few bends or elbows as possible. There must not
be an air trap on the suction line.
3. Tighten the pump fittings only as much as is required to ensure a tight connection.
Excessive torque is unnecessary and may cause damage to the pump.
4. All wiring (electrical) work must be carried out by qualified electricians and must be
installed in accordance to the local codes, see information on page 2.
5. The motor must be earthed.
6. The weight of the plumbing and fittings is to be independently supported and not
carried by the pump.
7. The pump is not self-priming. Therefore, if the water level is below the pump, a
non-return valve must be installed below water level. The pump and inlet line must
be primed prior to start up. For non-flooded installations a check valve
(non-return valve) is recommended.
8. The controller must not be submerged in water.
Gravity fed filter installation example shown below
Alternative
return to pond
via waterfall
Water Level
UV
4" Pipe
Return to pond
POND
5
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