two Unidentified black knobs

07-01-2009, 08:15 PM

I have discovered 2 black knobs ( one of which has been broken off) one foot infront of the driver-side rear stabilizer. They are infront of a small black box. Please tell me what they operate and how to replace/repair the broken one. I do not see mention of them anywhere in the manual. Thanks.

**ShrimpBurrito** · 07-01-2009, 09:24 PM

Are the knobs connected to valves that are connected to tubing? I'm guessing they are, in which case they drain water from the shower lines if you ever want to drain the plumbing (like before winter). If just the knob is broken, you can may be able to replace it if it is just screwed onto the valve. Otherwise, the valve may have to be replaced. Others will chime in....the valve may be connected to PEX tubing.

Dave

**Bill** · 07-02-2009, 07:45 AM

I think you've got it, Dave. These are two of the four gravity drains mentioned in the Plumbing section (page 19) of of the Owner's Manual. I think the small black box has something to do with the bathroom vent fan, though my TM is in storage at the moment so I can't confirm. And yes, these two valves should be made functional again.

Bill

07-02-2009, 09:15 PM

thanks Dave and Bill. I see mention of the 2 low point valves on page 19 now. I will crawl under and look closer soon.

Sue