DIY compressor - This is the cheapest and quietest equipment you will ever get. The compressor comes from an old refrigerator that was out of use. The airtank is the watertank for cleaning the windscreen of a car. Tank and hose were taken from a VW Beetle (wreck yard). The scale of the gauge is 0-4 (I don't know the British units). I work with a pressure of about 1,5 and the t-connection (zoo supply, aquarium) in the hose opens at about 2 like a safety valve, when one of the ends falls off because of too much pressure. You could take a professional valve, if you think it is safer. I work with this equipment since nearly 40 years for aircraft 1:72 and cars 1:32 and 1:24. The compressor doesn't run a long time, because I do only one colour at a time. If it is overheated, it cuts out but restarts some minutes later after downcooling. Admin edit: Image upload failed. Please ensure the URL used ends in .jpeg, or alternatively, save the image to your computer and then use the other image uploader