Inboard water pump

[Alistair_5088461]

I'm just awaiting delivery of a new Bailey Senator California.

Is the inboard water pump an improvement on the outdoor submersible pump I had on my Pageant? Although I've read from previous discussions that the Senator pump can be noisy I am hoping it will have a faster flow than the Pageant which I found rather slow when it came to a shower!!

What are the benefits of an inboard pump??

Any thoughts?

Thanks

 

[James_374408700]

Hi Alistair,

The on board pumps deliver a lot more pressure than the submersibles which is good ,although they are very noisy and the wife can empty an aquaroll in 1 go. enjoy lol.

 

[Tony-Porthcawl]

Hi Alistair

I have a Wyoming S6 and on these the pumps have been rubber mounted not like the S5 which did not,so they are a less noisy you have good pressure and the pumps dont freeze in cold weather.

 

[Zbungle]

I think the on-board pumps are better, but my experience with my 2007 Bailey Pageant Monarch is that it is very noisy. However, it would appear that the noise has a lot to do with how the pump is mounted. Mine is screwed, via 4 pieces of upended dowel rod, directly to the caravan floor. A friend has a 2008 version of the same caravan and Bailey now mount the pump on a much softer material so that it is almost floating. The result is the same high pressure, but the noise level is very much reduced.

I will be re-mounting mine in a similar way as soon as I can. I did query this with Bailey but they didn't want to know. As taking the van back to the dealer is a bit of an ordeal, I'll do it myself.

 

[WatsonJohnG]

I removed the mounting screws and sat the pump on a car wash sponge in our Bailey

The one in the Ace seems quieter and so I haven't bothered with this van

 

[gary]

I take it we are talking Whale 'aqua-smart' pumps that are noisy?

If so then it's not the pump nor particularly it's mountings, albeit they can exacerbate the problem.

The noise is caused by air in the water as it's pumped through the pump housing, the air causes 'cavitation' and it's the noise this creates that is then amplified by the floor acting as a sound board.

The pumps also trying to pump air which is compressible as apposed to water which is not, this then leads to reduced efficiency and therefore poor pressure/flow at the taps

Better mountings then help reduce the noise but do not get at the root cause, the water inlet connection outside is the common source for air getting in, sealing this beter has in my case reduced the noise to a whisper.

 

[Dustydog]

The pump on our S6 Wyoming isn't particularly intrusive, being rubber mounted etc,. Yes you can hear it but the pressure is far superior to the submersible we had in the Pageant.

My only reservation is we used to carry a spare in the Pageant, then only cost circa

 

[WatsonJohnG]

gary

That's most interesting

We always use the water from the onboard tank thus avoiding the problem you higlighted from the inlet

That could explain why we don't find the pump too noisy

 

[gary]

Perhaps John but as I remember I had the problem from either source, I have the electric valve unit and somehow it may have still allowed air into the system.

This was possibly due or infact another reason of it's own? I've just remembered this actually,

When I had the damp repair done I needed to remove the onboard tank, I found the inlet/outlet was a tiny 6mm diameter!! obviously being a massive restriction to flow I remade this and it's now 12mm which allows the pump as much water as it needs.

This then is another reason for noise as the pump fights to get water through any restriction, again though not the pumps fault but it's poor installation

If though the pump is sucking air it can be seen on the outlet side of the pump, the water will appear to be seen moving along the semi clear pipe, infact it's the air bubbles you can see moving, no air and you won't see water alone move