Quote:
Originally Posted by WDPatterson
Yes. The local propane dealer, a guy who's been at it for over 30 years, says do not use the auto function, or you'll have both thanks empty. He is supposed to operate it manually, even though it switches over automatically. As a matter of safety, it's best to leave the auxiliary tank closed until you need it. I get up and go open the secondary tank, when we run out on the primary. It's basically walking 16 ft to do it.
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I think that stems from the older dual tank regulators which did drain both tanks at the same time, they are different than a auto chang over. I have a 1991 camper in adition to my 5th wheel and it came with a dual regulator which I had to chage out for a auto changover. the only time a auto changover will drain both tanks is when it fails (my last one actualy failed so it would only use one side) or if you don't check it enough to catch it when it changes over.