I just bought a Trail Lite B+ 211s with 8.1 Chevy engine. This is my fifth motorhome (others range from an old 20' Vagabond, and three Winnegagos, from 19 to 32'. This vehicle is fantastic. I am...
My 213 does not have a siphon valve and tube. (I plan to install one though.) It is supposed to be drained at the water heater and low point drains, with the faucets open. That might work but I don't trust it. Last year I blew air through the system as well, using a fitting I bought at the RV shop.