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Water Inlet Leaking


X-Bob
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Greetings all

 

We have a Swift with a "Truma Crystal Compact" water inlet. Just recently the Inlet has started to Outlet when the pump and water system is not connected i. e. when sitting on the drive at home.

 

Now I know many people recommend draining down the hot tank before travelling but I have always left it full and this has never happened before.

 

I just wondered if there is a one-way valve in the system which is designed to prevent water escaping from the hot tank when not in use? And if so, is it easy to change or repair?

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Greetings all

 

We have a Swift with a "Truma Crystal Compact" water inlet. Just recently the Inlet has started to Outlet when the pump and water system is not connected i. e. when sitting on the drive at home.

 

Now I know many people recommend draining down the hot tank before travelling but I have always left it full and this has never happened before.

 

I just wondered if there is a one-way valve in the system which is designed to prevent water escaping from the hot tank when not in use? And if so, is it easy to change or repair?

 

A quick phone call to Swift will get answer in regard to one-way valve, I would have thought. However leaving water in the system is not a good idea, particularly if you use during winter. The damage caused by a freeze-up (could this have happened to your 'van and damaged one-way valve?) could be v expensive, inconveinient and will not be covered under warranty!

Sorry, not trying to preach, just helpful!!

DavMac

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The one way valve is built in the water inlet housing as mine was leaking last week and now the new valve is not sealing so leaking back when the pump is fitted

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Thank you Davmac and kenles.

 

I always drain down the system for the winter but we have had some severe weather this year so I thought perhaps some residual water could have frozen in there. Also my van is out of warranty anyway.

 

I was really after information regarding the possibilities of changing the one way valve, but thanks again anyway.

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Greetings all

 

We have a Swift with a "Truma Crystal Compact" water inlet. Just recently the Inlet has started to Outlet when the pump and water system is not connected i. e. when sitting on the drive at home.

 

Now I know many people recommend draining down the hot tank before travelling but I have always left it full and this has never happened before.

 

I just wondered if there is a one-way valve in the system which is designed to prevent water escaping from the hot tank when not in use? And if so, is it easy to change or repair?

 

Not a very common problem I assume?

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The Compacts NRV is in the outlet stem from it, where the cold water pipe inside connects.

 

If your van has semi rigid pipework the the connection fittings don't use pressure to seal and therefore don't cause a problem, however, if hose clamped with jubilee clips, the clamping pressure can cause the stem to distort and jam the NRV open or shut.

 

Beyond that, freezing water will distort the stem, or the valve seal and or it's 'shuttle'

 

There are more reasons than freezing to drain down especially while on the move, with the Truma, mainly the extra weight causing more stress on floor and wall mountings that their designed to resist, on the older Carver Cascade, on damage to the heaters seals and more particularly the 'tie rod' holding it together.

gary1s.gif

 

Arc Systems are specialist Carver caravan product repairers, committed to providing a comprehensive service as well as spare parts for these popular heaters.

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  • 2 weeks later...

Sorry to keep on, but . .......

 

Gary has informed me that there is a Non Return Valve and where it is.

 

Unfortunately I have not been able to find out what it looks like or where to obtain it or even a part number. That is after ages searching the web and several trips to accessory shops and dealers. The Truma/Carver website only shows the inlet housing - nothing inside that.

 

Can anyone help me with this one please?

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That is because it is a non replaceable item which is built in during manufacture.

 

If that is th ecause, then a new complete inlet is required.

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If the non-return valve is leaking put one of these in line with it - a lot cheaper than replacing the whole inlet unit http://www. whalepumps. com/marine/product_list/5/46/ they are available from a decent caravan shop or more likely a boat chandlers

2018 S-Max Titanium 2. 0 Tdci (177. 54bhp,180ps,132kw) Powershift + 2015 Unicorn III Cadz, Ventura Marlin porch awning

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Many thanks to one and all for the help and suggestions. I have now had a very kind offer from Steve (Tradetech) of a replacement non return valve. I did also email Truma and I have included their reply for the benefit of others:

 

TRUMA

Park Lane, Dove Valley Park

Foston, Derbyshire, DE65 5BG

 

Truma Service/Technical 01283 586020

 

Lines open 8. 30am - 5. 00pm Mon - Thur, 8. 30am - 1. 30pm Fri

 

Dear sir,

The part number for the non-return valve is 40060-60700. If this does not fit properly, you would need to fit a new housing (part no. 46500-22). Your dealer should be able to supply this as well as the mastic you require.

Yours faithfully

Andrew Currie

Service engineer

Edited by X-Bob
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  • 8 years later...

Hello - I think I have a similar problem.

 

Mine started leaking tonight after not being used only for a month (July - Aug so not cold enough to freeze).

 

I had not drained it down.

 

Also making a clicking noise although not connected to any thing while leaking out.

 

Is this definitely a job for the experts rather than me going over a speed bump too quickly?!

 

Am a complete notice and have only taken van out twice.

 

Any comments much appreciated

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Is it leaking from the outside housing? as this is usually down to O-rings perishing or someone using Vaseline on them, or from somewhere inside the van

Paul B

. .......Mondeo Estate & Elddis Avanté 505 (Tobago)

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Welcome and it may help if you explain where it is leaking from as this thread is over 8 years old.

 

Just a thought, but it is best to start a new thread rather than adding to an old one. I do hope we can help you.

Graham

Unless otherwise stated all posts are my personal opinion 

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  • 2 years later...

I have same problem with hot water leaking back through compact crystal 2. Disconnected pump from housing and water continued to leak out. Tried fitting a non return valve but pump wouldn’t  push water through. Removed it, replaced it with a straight connector and water pumped in again. Disconnected pump again and leak had stopped. Is there a built in NRV in the Compact Crystal which is allowing the leak?

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  • 2 weeks later...

Further to my post about water leaking back to aquaroll, I fitted a one way return valve in line and that fixed the leak. Thanks for all your advice.

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