Hot water now coming out of heads, but not galley

[Oatcake]

Afternoon.

Last week the pipe which feeds hot water from the calorifier (engine powered) to the galley hot water tap (HWT) became disconnected with an accompanying spray.

We reconnected it, but now we can only get hot water from the heads HWT, the galley HWT produces a dribble of not hot water.

Does anyone have any idea of why this could be and how to solve the problem?

Thanks for any help.

 

[chrisclin]

Could be a blockage in the galley pipework - that could explain why the pipe became disconnected to begin with - a buildup of pressure forced it to pop.

 

[sailorman]

Afternoon.

Last week the pipe which feeds hot water from the calorifier (engine powered) to the galley hot water tap (HWT) became disconnected with an accompanying spray.

We reconnected it, but now we can only get hot water from the heads HWT, the galley HWT produces a dribble of not hot water.

Does anyone have any idea of why this could be and how to solve the problem?

Thanks for any help.

air lock or pipes reconnected wrongly

 

[Oatcake]

Could be a blockage in the galley pipework - that could explain why the pipe became disconnected to begin with - a buildup of pressure forced it to pop.

Thanks for the quick reply. Where the pipe came off was directly underneath the tap. I thought, that a tap was, by it'a very nature, a blockage and haven't considered it as a cause. Maybe I should investigate that.

 

[Oatcake]

air lock or pipes reconnected wrongly

How would I clear an air lock, would the tap not have cleared that by being open?

In the other reply it has been suggested that the tap may be faulty so I will have to check that out I think.

 

[Resolution]

Suggest you dismantle the tap completely. I had a mixer tap which had the hot side blocked by the smallest imagionable piece of blue pipe swarf. Less than a grain of rice size.
Inevitably I had checked the hot water system all the way from the calorifier three times before I managed to find another bit of the tap to dismantle, and there was this miniscule bit of blue plastic.

 

[vyv_cox]

How would I clear an air lock, would the tap not have cleared that by being open?

In the other reply it has been suggested that the tap may be faulty so I will have to check that out I think.

An airlock is impossible assuming the pump is priming OK, which from your description is the case. Either you have kinked the hose, dislodged something that has entered the tap, or the general gunge that is often in hoses has now accumulated in the gauze diffuser at the tap outlet. I would start with the latter.

 

[nigelmercier]

... dislodged something that has entered the tap...

If this is the likely cause after investigating Vyv's other suggestions, then disconnect the hot tap, put a bucket under it, then block the tap nozzle with your hand and turn on both taps.

 

[ColleyV8]

How is your pump switched, is it off microswitches on the tap, or from a pressure switch on the pump?

 

[Oatcake]

Thanks for all the help and advice, it looks like the tap is the culprit. Thanks again.