I know it is on here somewhere but what is the pressure to use for blowing out tank/lines for winterizing. I have a 150 lbs compressor but I think I remember that I need to adjust it to 25-30 lbs max for blowing out the lines?

It's an oil less compressor right ?

Same as the city water pressure.

Use 35 - 40 psi, the same as water pressure.If you have a black tank cleaner, be sure to blow it out also as it's not connected into any of your water systems.Bill

Trackrig wrote:Use 35 - 40 psi, the same as water pressure.If you have a black tank cleaner, be sure to blow it out also as it's not connected into any of your water systems.Billx2.

And don't forget to blow out the shower head. I learned that this past spring when we found it laying in the tub!

Air Pressure for blowing out lines for winter | Good Sam Community

TUCQUALA
Explorer
Oct 02, 2016
25-40 psi, AND, do it 2 or 3 times!! Water vapor will condense in the low spots and elsewhere in the lines!!!
Colo_TJ
Explorer
Oct 03, 2016
But there's plenty of room for the remaining moisture to expand.

It doesn't need to be dry.
TUCQUALA
Explorer
Oct 04, 2016
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!!!!!
tatest
Explorer II
Oct 04, 2016
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?
rbpru
Explorer II
Oct 05, 2016
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.
deltabravo
Nomad
Oct 05, 2016
I run about 25 PSI
Timtation
Explorer
Oct 05, 2016
I use a vacuum, you only need to get enough out to leave room for freeze expansion, like lung power as previously posted.

Forum Discussion

Air Pressure for blowing out lines for winter

About Travel Trailer Group

Related Content

furnace fuse blowing

Tire blow out

Tire pressure

Avoiding blow overs

tire blow out