Air tank

They are a very large tank physically in diameter which is the issue as I see it. I held back on buying one for this reason.

Im still going to go to the truck wreckers for a $40-50 tank that I can pick the size and shape myself with pressure relief valve!.

Try an Izuzu truck wrecker. I have thought about it myself and I notice that the IZuzu trucks around the 2-5 tonne have about three tanks one of which is smaller diameter than most.

Do these tanks have to be certified or approved in some way?
I was wondering about using an older (but still in good condition) propane/butane gas (camping gas) tank that has not been recertified after 10 years?

I have one of these air tanks and as Truckster says, they are way too big to mount on a vehicle. OK as a portable supply of air. Takes a "charge" of about 120psi (max).

I'm a lazy bugger and can't be buggered connecting up "Big Red" at home to check tyre pressures, etc. Just charge the portable up from the 240 volt air compressor in the shed and take this out to the vehicle. Works for me.

I was looking at buying a second hand Water/pressure fire extunguisher for the bus but I gat put off by a fireman saying they needed 350psi. I thought that was a lot of pressure.

Another reason I did not get one was it was no good for elec fires or oil.

BUT could be handy carrying air in if they do indeed take that sort of pressure. They have some on ebay (20 of) and are located at Tile Importers in Melbourne Vic. If there of use to any one id be happy to drop by and pick them up.

9 Kilo they are so there not too small. I just thought Id mention it as its consistant with the thread.

Thanks a heap for the help, will canvass a few wreckers, a little bit of cross breeding wont hurt, mongrols' are always hardier anyway ;-)