Agreed with the check valve. We have ours on electric and have good hot water. We put ceramic heaters in the belly to keep the pipes warm. 10 below up here and so far so good.
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Les and Sue Young, 2009 Int 4400 LP, 2020 DRV Mobile Suites [/url] https://ramblingrvrat.blogspot.com/2019/11/freedom-from-grid-rambling-rv-rats.html[/url]
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