I blew my lines out the other day and realised that by simply opening both sets low lines, the hot water tank was completely empty, and very little water was left in the system.
I have opened these before in early fall and late spring if we get a freeze warning and have never had issues.
Point of story- this would most likely be good enough by itself to rid the water and depressurise the system.
PS. I am not going to experiment to check my hypothesis!
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Darren
2015 Thor Hurricane 34 J
Custom paint 2019 (Pro Custom Inc., Elkhart, IN)
2019 Honda Accord 2.0T Sport 6 speed manual
(THOR)
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