I go with the switchover valve, like others above. We don't use a lot of propane - mostly cooking since we travel exclusively in the summer. So every month or so I just check and if red fill up the appropriate tank. Don't see the big deal.
I have never had a problem except when a tank valve stuck and put out no propane. And I have been doing this for 17 years.
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Tom and Gail
2013 Mountaineer 362
2012 Silverado 2500
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