Originally Posted by acadianbob
Jeeper, how much air pressure do you use when blowing lines? I would guess that one needs to be careful about that to keep from damaging things?
I turn the requlated pressure at my compressor down to about 40 to 50psi when I blow the lines. There is no need to use a regulator at the inlet, just turn down the pressure from the tank. A water separator/filter on your air line is a good idea too. They run about $20 at the hardware/home improvement store.
In all my years I have never had a problem. There are some that are absolutely anal that you have to get every last drip of water out of the system and even still use antifreeze after blowing the lines, to which I just have to scratch my head and wonder why, kinda makes blowing the lines with air pointless if all you're going to do is add antifreeze anyway.
I've used antifreeze in the past, ONCE, and that was enough. Messy, expensive, time consuming and a royal pain to purge from your lines in spring when you want to use your rig again. Never again for me. Compressed air works great.