Winterizing: blow-out vs antifreeze for longer term storage?
I know there are many threads on this subject but bear with me please.
We are long term RV owners. Current one is Nash 22H purchased new in 97.
We are north of Seattle and our winters are relatively mild temp wise compared to many parts of the U.S. That said, where we are there are a some days at or below freezing each year.
To date I've used the antifreeze method each year (TT has the bypass) as we always use the trailer the following year, and it has worked fine.
This year the trailer will be put in storage for what may end up being 3 years of non-use.
I'm wondering if there area any negatives to leaving the antifreeze in the system for 3 years? And if in this case I should consider using the blow-out method? I have an oil-less compressor and the adapter thingy. I'd still probably put some antifreeze down the the p-traps and gray/black tanks I guess.
Would you do anything different if your rig was going to be put away for multiple years of non-use?
Thanks
We are long term RV owners. Current one is Nash 22H purchased new in 97.
We are north of Seattle and our winters are relatively mild temp wise compared to many parts of the U.S. That said, where we are there are a some days at or below freezing each year.
To date I've used the antifreeze method each year (TT has the bypass) as we always use the trailer the following year, and it has worked fine.
This year the trailer will be put in storage for what may end up being 3 years of non-use.
I'm wondering if there area any negatives to leaving the antifreeze in the system for 3 years? And if in this case I should consider using the blow-out method? I have an oil-less compressor and the adapter thingy. I'd still probably put some antifreeze down the the p-traps and gray/black tanks I guess.
Would you do anything different if your rig was going to be put away for multiple years of non-use?
Thanks
