RE: Badger 400 Spray Gun
Jim P please don't spray water through your cast aluminium and machined stainless steel spray gun,they don't like it,particularly if your tap water is contaminated with salts and other things.Water is useless for checking things like fan and pattern evenness or density,because the water you will spray just comes out so different to what you put in the gun next,assuming you don't readjust it.Re test patterns good idea,but water is hard to see.Use what you are going to spray,you can see and feel it then.You cannot adjust a compressor they just pump,you can regulate the amount of air they supply to the gun tho and this is important so please read carefully.If you use the regulater on the compressor to adjust air pressure you will find it's all over the place pressure wise.This is because you are using pressure already stored in the airline which runs from the compressor to your spraygun,it ossilates and 'bumps' too.It's far easier and more accurate to use the adjustment on the gun if you have one,do you?
If you feel that that's all to much info for what started out as a simple question please feel free to say "hey pete"..bugger off!!