Just had my service done yesterday, for oil, filters etc. and they drained the air/water seperation tank. It had a self drainer on it, but it had corroded and no longer functioned, so we had to, for now, put a new pitcock drain valve on it. I didn't know that they made self draining ones. I think I'll find out if they are available in the marketplace, because it seems like that would be a good idea to have any water draining out immediately. The other easy choice that I have seen is that a cable can be installed which, when pulled from the side of the Coach, will drain the tank without having to get under the Coach. One of our guys at the mini-rally, Pete, had such a system on his 95 Coach and it sure seemed convenient. I found a freightliner shop that said you can buy the setup for $24 each, plus labor if necessary.
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