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11.3 Replacing the Pump Tubing
Replace the Pump Tubing if it gets worn, begins to leak, or pumping volume is reduced. The Pump
Tubing may be replaced every year as a precautionary measure.
To remove the old Pump Tube…
1
2
3
4
Disconnect the power
supply from the
hydro
CHEM
unit.
Remove the Input and
Output tubing from the
compression fittings. This
is simply a reversal of the
procedure detailed in
section 11.1.
Remove the see-through
protector plate on the front
of the pump.
Turn the roller holder so
that the rollers are in a
horizontal line. Pull the left
hand side compression
fitting from its seat. Begin
turning the roller holder
clockwise, so that the
roller holder acts as a lever
which pulls the pump tube
out as it turns. After
approximately 3/4 of a
turn, the right hand side
compression fitting can be
pulled out.
The old pump tube has
now been removed.
To fit a new Pump Tube…
1
2
3
4
Turn the roller holder so
that the rollers are in a
horizontal line. Push the
left hand side compression
fitting into its seat, round
side facing in. Begin
turning the roller holder
clockwise, so that the
roller holder acts as a lever
which pushes the pump
tube in as it turns. After
approximately 3/4 of a
turn, the right hand side
compression fitting can be
pushed in, round facing in.
The new pump tube has
now been fitted.
Replace the see-through
protector plate on the front
of the pump. This is
essential to protect the
rollers and tube from dirt
and moisture.
Re-fit the Input and Output
tubing to the compression
fittings. See the procedure
detailed in section 11.1.
The
hydro
CHEM
unit’s
power supply can now be
re-connected.
