Originally Posted by cfsoistman
Could be a low point drain for the water lines but should have either a cap, plug or valve of some type to keep the water from running on the ground until the time you're ready to winterize the water lines.
I had a Lexington 2005 for 4 years before our GT 2012, this 2 water lines have 2 plugs when you are ready to winterize you open the lines so the water can drain on the ground. After that you put back one of the plug so you can close the line and winterize with the RV plumbing solution, take care of the other plug because it is very difficult to find a new one. Next spring you put back the plug and can initiate de dewinterize process for your next season.