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furpod
Moderator Group - pHp
Joined: 25 Jul 2011
Location: Central KY
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Posts: 6128
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Topic: Hot Water Heater ByPass Posted: 11 Jan 2016 at 12:00pm |
Could have a one way on the "out" side of the WH..
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CharlieM
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Joined: 23 Nov 2012
Location: N. Colorado
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Posts: 1797
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Posted: 11 Jan 2016 at 12:27pm |
Still can dump into the WH if it's been emptied.
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Charlie
Northern Colorado
OLD: 2013 RP-172, 2010 Honda Pilot 3.5L 4WD
PRESENT: 2014 Camplite 21RBS, 2013 Supercharged Tacoma 4L V6 4WD
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furpod
Moderator Group - pHp
Joined: 25 Jul 2011
Location: Central KY
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Posts: 6128
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Posted: 11 Jan 2016 at 1:54pm |
If it bypasses the cold water fill side, then meets the T of the hot/exit side, and there is a one way between it and the tank, it will not fill.
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CharlieM
Senior Member
Joined: 23 Nov 2012
Location: N. Colorado
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Posts: 1797
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Posted: 11 Jan 2016 at 2:04pm |
Originally posted by furpod
If it bypasses the cold water fill side, then meets the T of the hot/exit side, and there is a one way between it and the tank, it will not fill.
| Yes, but I'm not aware of a check valve in that outlet line. And if it is there that inhibits draining of the HW pipes and HW heater from the hot low point drain. All said I think the three valve setup, or two either/or valves, is best. Actually two either/or valves might be better since you would get either hot water, cold water, or no water, but not luke warm water.
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Charlie
Northern Colorado
OLD: 2013 RP-172, 2010 Honda Pilot 3.5L 4WD
PRESENT: 2014 Camplite 21RBS, 2013 Supercharged Tacoma 4L V6 4WD
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techntrek
Admin Group - pHp
Joined: 29 Jul 2009
Location: MD
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Posts: 9062
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Posted: 12 Jan 2016 at 9:31pm |
At first I thought it must allow some antifreeze in, but it can't be much. I used slightly less than a gallon in the pod, and slightly over a gallon in the Salem, which I expect since the plumbing system is a little bigger. Last year I even tried to drain the WH again when I was done and didn't get anything out.
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