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Quote:
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Originally Posted by Set Square
In an earlier contribution to this discussion,
alexbartman wrote:
The pump will have a flow switch which triggers when a small amount of
gravity flow occurs, thus turning on the pump to boost the shower. For
whatever reason, when the shower is first turned on, there isn't enough flow
to trigger the switch - which is why shaking the head sometimes helps.
It's quite possible that the head itself is furred up and restricting the
flow. What happens if you remove the head so that water just flows out of
the end of the hose? If the pump then works ok, you need to de-scale the
head. It's best if you can take it to bits, but if not, just soaking it in
vinegar over night may help.
If all else fails, wire a momentary switch* in parallel with the flow
switch. Open the shower valve and press this switch to start the pump. Once
the boosted flow starts, the flow switch will take over.
* If this additional switch is in the bathroom, it will need to be suitable
for the location - such as a pull switch in the ceiling. [Can you get
momentary pull switches?]
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Cheers,
Set Square
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have checked the hose and head - its not them - so if it is the valve itself - is there any clever way to de-scale with it still in situ - removal is going to be a very majopr headache.....and not sure I like the idea of separate switches???
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