Winterize city water valve assembly

KGs2108DS · 10-17-2022, 04:11 PM

Is it necessary to winterize this valve? If so, OK to simply pour a small amount of antifreeze into the connection? Or, do i need a pump to pump larger amount of antifreeze into the valve assembly? Also, do i need to put antifreeze into the black tank flush intake? 2018 Micro Minnie 2108DS. Thanks!

mduff · 10-17-2022, 04:35 PM

I use the water pump to draw antifreeze into the plumbing. For the city water valve there is a small button in the center that when pushed will cause antifreeze to spray out; stand to the side. As for the black tank flush I do not believe it requires any antifreeze as it doesn’t hold water.

**creativepart** · 10-17-2022, 04:58 PM

Quote:

Originally Posted by mduff

For the city water valve there is a small button in the center that when pushed will cause antifreeze to spray out; stand to the side.

On a travel trailer? I've never seen or heard of this. Please detail???

mduff · 10-19-2022, 01:49 PM

Quote:

Originally Posted by creativepart

On a travel trailer? I've never seen or heard of this. Please detail???

We had it on our travel trailers and motorhomes, suspect it may be standard?? I've attached two (2) pictures, one showing the valves (it's the City Fill that you want to 'open').

The second picture is a closeup of the City Fill valve and in the center note the 'button'. Pushing the button opens the valve and with the water system under pressure (water pump on, if using it to pump in antifreeze) it will spray the antifreeze out ensuring that any water is displaced and the line and valve are treated with antifreeze.

In addition, in our owners manual, in a table called WATER SYSTEM DRAIN VALVE LOCATIONS, it mentions this 'button' as part of the draining procedure. "Also, place the tip of your finger inside the city water connection and gently press the backflow valve (small “button” in center of connector) to drain any water left in the city waterline."

Morich · 10-19-2022, 04:19 PM

Quote:

Originally Posted by creativepart

On a travel trailer? I've never seen or heard of this. Please detail???

It's the end of the small plastic check valve! The one that leaks so easily? If we push in, it opens just enough to let air in and the water will then run downhill if the pipe or tubing is laid in that way! Releases any vacuum holding the water?

I admit to never having used it as it holds so little water that it has never seemed to bother but I assume there might be some which might freeze?