in my 90 i put the pull cable drains so i could drain all 3 big tanks by just opening a compartment and pulling a cable. i did it whenever i thought about it and usually got nothing out of them. the small air dryer for the 110v compressor on my 90 sometimes got some moisture out of it.
i have gotten quite a bit out of this new one but i think it had not been drained in a long time.
tom
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