Air Pressure for blowing out lines for winter

I use a vacuum, you only need to get enough out to leave room for freeze expansion, like lung power as previously posted.

I run about 25 PSI

From experience I would say it is less than what I used when I blew the check valve out in my camp water line connector.

My compressor is maxed out at 60 lbs.

CopilotCompanion wrote:

tatest wrote:
I crank the regulator on my 150 psi compressor down to 25-35 psi for this task. Blowing out one water line at a time, it is unsual for this to empty the (not very large) tank, and if the compressor has to start running, it has enough output to maintain flow at this pressure setting. For his job, what you need is air volume, not pressure, since you are blowing out open lines and not building up pressure.

Off topic... Are you the voice-over guy?

Right to the point. Are you the new moderator?

No labor costs, no parts costs, just some extra time to be sure you hit all lines and faucets!!! Of course with your tiny home, you could blow into the hose and take care of the lines!!!!!

But there's plenty of room for the remaining moisture to expand.

It doesn't need to be dry.

25-40 psi, AND, do it 2 or 3 times!! Water vapor will condense in the low spots and elsewhere in the lines!!!

tatest wrote:
I crank the regulator on my 150 psi compressor down to 25-35 psi for this task. Blowing out one water line at a time, it is unsual for this to empty the (not very large) tank, and if the compressor has to start running, it has enough output to maintain flow at this pressure setting. For his job, what you need is air volume, not pressure, since you are blowing out open lines and not building up pressure.

Off topic... Are you the voice-over guy?

I crank the regulator on my 150 psi compressor down to 25-35 psi for this task. Blowing out one water line at a time, it is unusual for this to empty the (not very large) tank, and if the compressor has to start running, it has enough output to maintain flow at this pressure setting. For his job, what you need is air volume, not pressure, since you are blowing out open lines and not building up pressure.

and remove any installed filter elements, and empty the filter housing....