Pump does not pump properly
Ensure gulley is not blocked and that ttings
are pushed home and airtight.
Re-test and if pump does not pump
properly, remove inlet coupling and press the
test button on the transformer, or run the
shower into the sink to run the pump.
Place a nger over the pump inlet.
Is strong suction felt?
NO
YES
Inspect that the tricuspid valve
inside the screw on holder on
the pump discharge is in good
condition and that couplings
and discharge pipework are
clear of debris or blockages.
If these are OK remove and
inspect the pump head as
described in the Installation
& Repair section of these
instructions.
Take care to conrm that ap
valves close properly and that
the diaphragm bead has not
been squashed.
These parts are available in
the Replacement Head Kit
(SDS071T) – includes
diaphragm and tricuspid.
or
Replacement Diaphragm and
Tricuspid Kit (SDS061T)
Check for blockages on inlet and outlet pipe
and for air leaks as described in the Installation
Testing and Repair section of these instructions.
Repair any leaks or clear blockages.
Once the problem has been resolved it is good
practice to replace the tricuspid valve.
These are available in packs of 10 - SDS211B
25
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