Russ,
I'll give you how I handle this & then let others tell us how they do it. I drain my tanks every time I lube the chassis. Every 5000 miles. For me that is three to four times a year. I also replace the air dryer annually. Once I found all the petcocks it is a quick job. Also I cut large wooden blocks that I can just slide under the coach to support it, so that too is quick. Using this method I seldom get any water. Oh and by the way there is a 9th tank that I just remembered that is round & located just in front of the transmission. It doesn't have a petcock, it just has a needle valve for draining.
Works for me..........................
__________________
Steve
Newell
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