First Time Winterizing

[RockyB]

Hi all. After a planned outing in early October, I will attempt to winterize our Sprinter 331RLS for the first time using the compressed air method. Looking under the RV, the only drain I see (uncapped) is a blue line in the area of the fresh water tank. Most of the information I've read suggests there should be low point drains in addition to the fresh water tank drain. I can only find this single drain (and I assume it should be capped). Am I missing something here? Thanks in advance for any guidance.

[JRTJH]

There are two low point drains somewhere under your RV. Usually they are along the outside of the frame rail somewhere between the forward water installation and the rear water installation, so if you've got a rear kitchen and a center bath on the road side, the low point drains should be somewhere on the road side, outside the frame rail, tucked up close under the skirting, right up next to the flooring seal, somewhere between those two areas.

If your utilities are mainly on the curb side, they may be outside the frame rail on that side. (mine are curb side). They may only extend 2 or 3" through the floor, are sometimes very hard to see and often are right next to an outrigger or a brace (which hides them from all but the most prying eyes).

They are there, just keep looking. Mine are both white with white caps, some are blue and red, some are gray. Once covered with dirt, grime and road tar, who knows what color you may find.....

Get on your back on a creeper and just "glide along" until you find them. You'll be amazed at what else you'll find under there, so take your time and make mental notes of what you want to accomplish when you get bored and have nothing better to do. Patch coroplast holes, tighten screws, add support for sagging areas, etc all come to mind.

Good Luck

[chuckster57]

I've seen them buried in foam sealant. Be careful if you start removing foam, as you may have to fill in the hole. We use great stuff large gap filler.

[TheSweetLife]

I've seen them buried in foam sealant. Be careful if you start removing foam, as you may have to fill in the hole. We use great stuff large gap filler.

Yes, my 2 white caps from the drains are only sticking out 1 inch from the mound of foam. Made it little hard to unscrew them the first time I drained the lines.