This is a write-up of what I did to winterize our Travato. I'm explicitly talking about our specific rig, a  2019 Winnebago Travato 59K class B van. I may have left something out, or I may have screwed up something — but hopefully this helps someone, at the very least it'll help future me!

The steps I took are based on a combination of previous experience and some resources found online. They're specifically tuned for the 59K. There's a resource collection at the end, for other Travatos.

I choose to use both compressed air and antifreeze, as it seems blowing with compressed air just always keeps finding another pocket of water somewhere; I just don't trust it to be thorough enough. On our earlier class A motorhome, compressed air was enough, but I don't feel as confident here.

Print this out, cross items as you make progress, and make a note if something was different!

Materials and tools

Winterizing steps

  1. dump and rinse black tank well; you'll dump again to get rid of water from the lines, but that's after blowing the black tank rinse water line; or, skip this round and get the air compressor out again after dumping later, blow line then
  2. park level
  3. ensure Truma is off
  4. ensure water pump is off
  5. lift things out of kitchen sink, prop lid open
  6. open kitchen faucet, temperature half-way, leave open
  7. open bath faucet, temperature half-way, leave open
  8. flip up driver side bed, remove storage cubby and side access door
  9. drain Truma with yellow pressure relief valve, leave open
  10. open low point valves, wait to drain, leave open
  11. remove O-ring filter from city fill inlet and tank fill inlets
  12. press city water and tank fill backflow valves with finger, wait to drain
  13. remove water filter, empty water, reinstall canister; use towel underneath
  14. empty pump strainer, clean debris, reinstall; remember threads are upside down, pinch in-the-way hot water pipe to pump with other hand to be able to reinstall
  15. start van, connect power & turn on air compressor
  16. adjust to 0psi, connect to tank fill inlet, adjust gradually to 20psi, wait to drain, adjust to 0psi
  17. run water pump for 2 seconds no more, turn off
  18. adjust to 0psi, connect to city water inlet, adjust gradually to 30psi, leave on
  19. wait until drained, close low point drain valves
  20. wait until drained, close bath faucet
  21. wait until drained, close kitchen faucet
  22. adjust to 0psi
  23. switch Truma bypass to winter mode
  24. adjust gradually to 30psi, there should be no air flow; next blow pipes one at a time by opening, draining, closing each outlet
  25. blow kitchen sink hot+cold
  26. blow bath sink hot+cold
  27. blow shower hot+cold, ensure handle cutoff valve is open
  28. blow toilet fill
  29. blow toilet bidet, hold down valve in handle while pressing toilet pedal
  30. blow ext shower, leave hose connected
  31. blow low point drain valves; remember to close valves
  32. adjust to 0psi, connect to black tank rinse inlet, adjust gradually to 20psi, adjust to 0psi, disconnect
  33. turn off air compressor
  34. turn off van
  35. disconnect air compressor power, stow
  36. restore O-ring filters to city water and tank fill inlets
  37. empty water filter canister and reinstall, again; use towel underneath
  38. empty pump strainer and reinstall, again
  39. close Truma pressure relief valve
  40. switch siphon tube valve to winterize
  41. bring 1 gal antifreeze to pump, remove siphon tube cap, put siphon tube into antifreeze
  42. turn on water pump, after initial burst there should be no water flow
  43. next pump antifreeze to pipes one outlet at a time, hot and cold separately, close when pink stuff comes out
  44. beware running out of antifreeze or siphoning air because tube is not submerged. beware spilling antifreeze bottle. easiest if you have a helper at the bottle
  45. antifreeze kitchen sink hot+cold
  46. antifreeze bath sink hot+cold
  47. antifreeze shower hot+cold, ensure handle cutoff valve is open
  48. antifreeze toilet fill
  49. antifreeze toilet bidet
  50. antifreeze ext shower; disconnect, drain and stow hose
  51. turn off water pump
  52. restore siphon tube cap
  53. switch siphon tube valve to normal
  54. restore bed
  55. stow kitchen sink things, close lid
  56. drive to dump tanks
  57. pour antifreeze 1cup in kitchen sink (waterless trap but it won't hurt)
  58. pour antifreeze 2-3cups in bath sink (P-trap)
  59. pour antifreeze 2-3cups in shower drain (waterless trap); should be roughly the rest of 2gal bottles, adjust amounts to not run out
  60. put towel in laundry
  61. carry water bottles etc to house
  62. order new water filter for spring (the Culligan US-600A cartridge takes D-20A, D-30A, or D-40A filters, higher numbers are fancier but clog quicker; I'm buying D-30A next for us) (you may also need new O-rings)

Resources

Shopping links are affiliate links and help us pay for this site. Our opinions are our own, and not paid for.