gwtriker Report post Posted November 8, 2023 I have recently downsized from a class A RV to a small tag along rv. When winterizing the class A, I . sed the water heater bypass to keep from using a lot of antifreeze. The small RV does not have a bypass and there is nit enough clearance to add one. Would it be enough to just empty the heater and blow out the lines to keep them from freezing over the winter months? Share this post Link to post Share on other sites
wildebill308 Report post Posted November 9, 2023 Without hands on I think that should work. Just me but I would blow it out a couple different times. Water will recollect in low spots. Bill Share this post Link to post Share on other sites
aztec7fan Report post Posted November 9, 2023 on my first motorhome, it didnt have a bypass, so i would drain the WH and then get about 7 gallons of the pink stuff and fill the WH with it, as well as run it through the rest of the system. i then drained the WH and recovered the antifreeze to reuse it the next year. Share this post Link to post Share on other sites
rls7201 Report post Posted December 1, 2023 The water pump doesn't blow out when using air. You'll need to remove the discharge line and run the pump. Then some water pump inlet screens need to be opened up. Richard Share this post Link to post Share on other sites
five Report post Posted December 2, 2023 The safest way is to run RV anti freeze through the system. Two springs ago, Walmart was having an end of season sale on Prestone RV anti freeze. I bought 15 gallons for $15. Share this post Link to post Share on other sites
wildebill308 Report post Posted December 3, 2023 Do you have any information on re using RV antifreeze? Bill Share this post Link to post Share on other sites
