| Re: [GMCnet] Re: Winterizing Options [message #367414 is a reply to message #367383] |
Sat, 30 October 2021 08:35   |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma:
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Senior Member |
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Billy Massey wrote on Fri, 29 October 2021 11:17Read 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
Bdub,
I guess your compressor is a smaller one. When I tried clearing the coach without a regulator in the supply, between turning off the last tap in the head (bathroom) and getting around the corner to the galley (kitchen) the line pressure was up over 130psi and the water came out of the galley tap with extreme violence. (Read - turned the corner in the sink and was all over the dinette and me before I could stop it.) I thought a regulator at the city water was easier than clearing the head and leaving a valve open, going out to the galley, opening a tap there then going back into the head to close the open tap and then get back out to the galley to mop up the water that came out fast once the tap in the head was shut.
When I am clearing the system, I have 50~60psi on it all the time, so I use that to drain the water heater as well and do not need the TPS valve as a vent. Besides, it drains faster at 50psi. And, with pressure in the tank, it can blow out more than I get with a static drain. I have had more than a few of the TPS valves fail to re-seat and so the client got to complain at me most of the next season. On boats, they don't drip overboard, the leak has to get pumped out of the bilge.
That reminds me, I didn't have the pink stuff handy and still have not done the traps.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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