9 replies to this topic

[mopips]

I just bought a used RV. 2003 Newmar Mtn Aire. I'm in the process of sanitizing the fresh water tank, but I can't find where or how to drain the tank. I bought it from a widow, and she knows very little about such things. Her DH took care of that. Can anyone out there give me some help? Or do I just have to pump the water into the grey tank and drain it?

[Brianwl]

There should be a drain valve. Where it is on your rig, I don't know.

[mptjelgin]

We have had three different trailers, and the drain valve was in a different place on each. It may take some poking around, but it is usually going to be accessable from the outside. On our last trailer is was located inside a storage area with in a group of three valves near the fresh water fill port. One valve drained the cold water lines, a second drained the hot water lines, and a third drained the freshwater tank. These were small "pop-up" type valves. On our current trailer the fresh water drain is an isolated valve located on the underside of the trailer, but reachable from the side. This one is a more conventional looking "quarter-turn" valve.

Good luck in your search!

Mark

[Mr. Dave]

Our MH has the Waterworks panel at the fill location. There is a diagram on the panel for different functions. By turning the 4 valves to the correct position, you then drain the system. It's that easy. Hope this is of some help.

[Kirk]

Look first near the fresh water tank, or below it. If you go under the RV you can probably locate the drain tube(s) and follow back up and toward the tank to locate it. There are probably also low point drains for both the hot and cold water lines. If you need it, there is a detailed description of how to do the job at this webpage.

Edited by Kirk, 25 April 2012 - 05:48 PM.

[mopips]

Thanks for the replies. I looked all around underneath, and could find no drain or valve. Even tried the low point drain, but was only successful at draining the water lines. Still had water in the tank. I called Newmar customer service. The tech there gave me some places to look, but no go. He also told me that some of the older models had tto be pumped out. So, after running the whole fresh water tank into the grey water tank with the bleach solution, then rinsing it a couple of times, I'm sanitized. Thanks again for trying.

[Kirk]

I'd suggest that you keep an eye out for similar aged Newmar coaches and when you see one, ask the owner about it. I would bet that there is one there, but we just can't find it. I know that a friend's Newmar had one back in 1999. Someone will know eventually.

[TCW]

If you have an outside shower or hose, use that if you do not want to pump all the water through the gray tank.

[mopips]

I'd suggest that you keep an eye out for similar aged Newmar coaches and when you see one, ask the owner about it. I would bet that there is one there, but we just can't find it. I know that a friend's Newmar had one back in 1999. Someone will know eventually.

Kirk,


You can bet I'll be on the lookout for a similar 5th wheel in the future.



No outside shower either.

[mopips]

Our MH has the Waterworks panel at the fill location. There is a diagram on the panel for different functions. By turning the 4 valves to the correct position, you then drain the system. It's that easy. Hope this is of some help.

YREKA ! I have found it. Mr. Dave you were right. It is at the "water works" area. A small 1/4 turn valve hidden under the downward projecting water filter. I might add that it is unmarked. Drains through a small, probably 1/2" tube, next to the low point drains.
Thanks again for the help. The forum works.