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 Topic: Low water power Bailey GT65
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15/5/2022 at 5:19pm
Location: London
Outfit: Lunar Cosmos 524
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To be pedantic, what you are suffering is poor water FLOW which could be low pressure or a pipe blockage!
It seems that you may have sufficient pressure as the pressure switch is turning pump off OK when taps closed, which implies that the pump is OK especially as you've tried a different pump as well, and that any non-return valve is functioning (more on that later!) otherwise pump would kick back in once pressure leaked away.
The fact that both hot and cold water have bad flow, suggests problem lies early in the plumbing, with the feed before it splits to the boiler.
Couple of things seem worthy of further investigation, is the non return valve FULLY opening? The other thing to look at is the water connector housing and pipe immediately behind it, the external weather cover is largely cosmetic, it does little to stop bugs getting in, so possibility of a bug having nested in pipe and causing a blockage/obstruction.
With typical caravan plumbing, the joints are John Guest push fit, so it's a simple job to disconnect pipes. With an assistant to disconnect the pump QUICKLY on command, it's worth trying an open ended pipe run (obviously into a container!) starting as close to the water inlet as possible to see where the flow drops off, then you have isolated the pipe run where any obstruction may be. If an obstruction is found, then reverse flushing may clear it, or a simple new length of pipe.
Another possibility is low voltage to the actual pump electrical connectors (your battery may be sound and 13.11v is good), but have you checked voltage on pump connection terminals?), if the voltage is low, the pump will likely run, even build pressure on a system with taps closed, but may not produce normal flow.
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via mobile 14/5/2022 at 7:33pm
