| [GMCnet] Re: Winterizing Options [message #367383 is a reply to message #367381] |
Fri, 29 October 2021 10:17   |
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Read it again, Matt. As I stated, there is always at least one outlet open
at all times. This is to prevent rupturing any of my plastic lines or
fittings. It works very well and damages nothing. My shop air is also
150psi but my compressor cannot keep up with the volume, so I pause the
process midstream.
Only freeze damaged part I ever had to replace was a plastic fitting when I
did regulator pressure.
Re your comment about the pop-off valve in the water heater; that is
opened only to let air in to displace the water as it drains out the bottom
of the tank.
bdub
On Fri, Oct 29, 2021 at 9:34 AM Matt Colie wrote:
> ... snip ...
>
My shop air pressure is 150psi, and that can exceed what plastic plumbing
> can handle. So, if you have plastic, think about using a regulator in the
> set up. I do use one because the time I put shop air pressure on the
> system it was really violent.
>
> Another note, the relief valve on most water heaters is close to the top.
> Too high for a good drain down. All the RV/Marine water heaters I
> have seen do have a drain that is supposed to be low enough to prevent
> freeze damage.
>
>
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