Due to the demise of 2 dive shops, I now find that I can't get my cylinders filled locally. I have found a few sub £200 compressors, there are several by a company called Tuxing who seem to do a wide range. They purport to be oil & water free and suitable for diving cylinder filling. I realise that if they are suitable it will take a looong time to fill - but quicker than a 50 mile round trip. I would only be using it for pool dives so maybe 1/2 full would do. Has anyone got experience of these compressors ?