You're also talking several gallons of RV antifreeze each year with a regular Travel Trailer - I'm still using the same gallon I used on our tent trailer before and now three years with the TM and still have a half gallon left! That's one half gallon in six years. Also, once you get that taste in your fresh water lines on a regular TT it takes a long time and many gallons of water to get rid of it! Since we only put it in drains, there's never any taste in the fresh water.
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