Bourton Gas Refilling

If the pump stopped after your first 11 litre you should have left it there

I was never trained in bulk gas tanks, and I can't say I have even looked at mine yet, but it sounds to me as if you may have overfilled the tank, in which case liquid fuel may have got into the regulator/OPD. This may be venting off through the pressure relief valve and possibly also through the cooker gas tap spindles if there is excess pressure in the system, hence the smell of gas in the van.

Personally I would be very careful. Any excess gas needs to be vented off before the temperature rises and causes more expansion. You should probably contact a professional LP gas installation firm for advice, or if you can't find one your local fire officer may be able to help. It could be very dangerous to try and simply vent the excess gas to atmosphere.

(Incidentally, it almost looks as if the needle in the gas gauge has come up against a stop at 80%? Also, I would never believe a Gasit gauge and they will not tell you if the tank is over full.)

An interesting saga that made me go out and check the gauge on the side of my tank which looks the same as in Glyn's photo with the needle appearing to be resting on a stop at 80% as observed by Bargee.  This is the first time I have checked this gauge which isn't mentioned in the A-S handbook.  I had to lie down on the ground, remove the metal cover, clean the gauge's screen with some spirit and then take a photo of it with my mobile phone as I couldn't read it upside down and at such a sharp angle.  

I don't know if the OP's pump supply cutoff after 11 litres and he then pressed the button on the pump a second time.  If he did, it's not an unnatural thing to do if you're not sure the tank is full.  There is nothing in the A-S handbook that says you shouldn't do this.  

Earlier this year I had a similar experience to the OP.  I don't remember the supply cutting off but it got progressively slower until I eventually gave up as someone else was waiting to use the pump.  I couldn't start the engine whilst I was filling the tank so couldn't use LED gauge.  However, when I left the pump the lights were all green.  It turned out the pump had run out of gas which was confirmed when the next chap tried to use it.

The LED gauge is a bit worthless anyway really. I went away with it showing red at the start, thinking I would see how long the fridge would continue to run. Four weeks later, and having used gas heating several mornings, and boiled the kettle numerous times, it was still going strong. When I finally filled it, it took 15 litres.

On my Nuevo the gas regulator assembly is fitted close to the LPG tank and exposed to all the crud that comes off the road. The chap carrying out my last habitation service had difficulty carrying out his checks because of this.  I have since cleaned it up.  Is this a problem?  Should I be cleaning it more often?  Has anyone found a way of protecting the assembly whilst retaining access to it?