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27/11/2011 at 10:27pm
Location: Milton Keynes
Outfit: Bailey Alliance 66-2 Motorhome
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Quote: Originally posted by Big Al on 27/11/2011
David
what difference would turning the gas bottle off overnight or when not in use do
When the regulator is still under pressure at the other end of the pig tail ?
I don't know but then I have not had a failure! Maybe its because I was once a boater and the concern was gas getting into the bilges!!!
David
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28/11/2011 at 12:12am
Location: None Entered
Outfit: http: www.arcsystems.biz
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There is now a 'filter' that Truma are supplying to stop the regulator getting blocked, this is being widely reported in the Caravan press and questions being asked on forums.
Below is my reply, be in no doubt though, the Truma supplied GOK regulator is far superior than the Gaslow supplied Cleese regulator.....
Forget all the rubbish about the 'oil' leeching from the hose, if this were true, the hose would resemble a shrivelled prune and so hard it would break like a stick of rock! There is also far, far to much present to come from such a short length of hose.
The Cleese Regulator as promoted as a cure together with a stainless hose, yes the reg will not block because it will let the oil pass through, that's not just for 5yrs, it never will block. Once through though, that's not to say it's not then free to do more expensive damage to gas appliances, which be in no doubt it DOES!
Water heater is fav, ask how much it will cost to change a Truma Ultra-stor gas valve?
I will add, if your vans pipework system goes to a single vertical manifold of taps first, then any oil present will not pass this point, in this case the Clesse reg is a suitable work around, get them from BES.co.uk, about £14
However if your appliances are fed directly from the main feed pipe, even with a isolation tap in-line, think long and hard before changing.
Juries out for me on the stainless hose, I'm sure it won't help one jot with the oil problem, but and from the beginning with this idea, I've been dead against rubber hose taking full bottle pressure, up to 300psi! and a recipe for a disaster if ever there was one... no? well just wait until these post 2003 vans are 15 years old or more and rarely if ever serviced?!
Overall then and having a life of 25 years or more, stainless hose must be a good safety investment, if not on your own van, when pitched next to an old one several years from now!!
Which leaves Truma's regulator which is actually not theirs but made by GOK, it being an excellent reg for gas but was never designed to cope with something that should not be present, not it's fault either then.
As for Truma making money, it did original cost them in the region of half a million pounds on replacements, until they found out the reg was NOT at fault, so stopped changing them for free.
In the mean time they or more likely GOK have tried to make a trap which works, I know they have had several false dawns with traps that 'almost' work, maybe this new one is one that does 100%?
So what is the best thing to do to save yourself in the meantime, there are a couple of simple rules which should help.
1, When fetching a new bottle, make sure it stays upright and is not shuck about in transit, this will ensure the 'oil' if present, stays at the bottom of the bottle where it is out of harms way. (did I not say? it is in the bottle, be sure of that, but it's a lottery, in some, but far from all).
2, Before connection, crack open the bottle for a second and shut, repeat two or three times, this will eject any oil trapped in the pick up pipe and or valve itself. While doing this, if you hold a paper towel over the inlet, anything being blown out will be caught for you to see in advance.
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28/11/2011 at 11:03pm
Location: None Entered
Outfit: http: www.arcsystems.biz
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The fork truck question is more part of the debate than it would appear?
Since writing originally, part of what I said above is, I've found, incorrect, this is the last bit of the second part of the self help information where I said "this will eject any oil trapped in the pick up pipe and or valve itself"
There is no 'pick up pipe' just the neck of the valve flush with the tank sides inside.
I'd wrongly assumed there might be a short stub of pipe, but, I now realise this being present and standing clear of the tank sides, would actually help prevent oil escaping by preventing it getting trapped in the outlet.
It may well then be a cheap solution to the whole problem should those actually responsible ever admit to it?!
............
As far as LPG bottles for fork trucks and the like are concerned, these do have a long pick up pipe angled down and the bottle has to be mounted so the pipe is at the bottom, this makes sure only liquid comes out, as said, it changes to gas after being delivered to engines in liquid form
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