Plumbing Diagram

[Jimeg]

I have had travel trailers and fith wheels for the last thirty years but my son's Sunline Solaris, 1996, T-2053 has me stumped. While trying to winterize it I have found more valves, and piping than you could imagine. My question is does anyone have or know a diagram for the plumbing system on this unit?

[henryj]

I'm not familiar with older Sunlines, but unless a previous owner messed with the plumbing, they're all done the same way.

There should be two low point drains. These valves are typically located on water lines fastened to the floor under a bathroom or kitchen cabinet. Many people will use these for winterizing, but it's not necessary. It's nice to know where they are, but you can ignore them.

After draining the hot water heater it's necessary to bypass it to keep antifreeze out. This is not just to save AF, the smell can be hard to get out next year. The small amount of water left in the HWH can safely freeze. At 1996 your Sunline likely has 2 valves on the lines close/attached to the HWH. Turn both valves to bypass the HWH. Newer winterizing kits like Sunline installed on our 2005 only have one valve.

Finally, the water inlet line from the fresh tank to the pump should have a valve with a T leading to short length of white drinking water hose. Turn that valve and stick the hose into your AF jug and the pump will draw AF through the entire system. You'll likely need at least one jug for this step, but have a second jug ready as you need more anyway to pour down the traps. Don't forget the toilet sprayer and the outdoor shower if you have them.

Henry