It is very helpful to know the year and model of your Montana. But I will guess you have a fairly recent year and the low point drains are right there in the right wall of the convenience center. There should be a red and blue line each with a twist valve. Dem be its.
Carl (n Susan) Youngren
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB