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Old 05-25-2013, 08:44 PM   #1
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2 Fresh water drain valves?

On my 27BH I have 2 hoses under the tank. 1 has a valve that I can close but the other doesn't. The one with out started to drain water as I was filling up fresh water tank. What is this for?
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Old 05-25-2013, 09:00 PM   #2
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Sounds like the unvalved line is a vent or overflow for the fresh water tank.

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Old 05-25-2013, 09:12 PM   #3
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I was thinking this too but there is no way I filled up the 42 gallons in 3 minutes
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Old 05-25-2013, 09:16 PM   #4
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Maybe it is supposed to be capped or have a valve.
Is the valved line a low point drain?
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Old 05-25-2013, 09:21 PM   #5
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I would assume the valved obe is low point drain, but there isn't kutch literature in the manual.
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Old 05-25-2013, 09:23 PM   #6
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Is it a bare water line or does it have threads or...?
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Old 05-25-2013, 09:31 PM   #7
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It looks like the same type of hose as the valved line. No threads. About 1" away from the valved line and hanging about 4" below the tank.
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Old 05-28-2013, 11:28 AM   #8
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My 312QBUD has the same set as your talking about. I assumed too, one with valve is drain and other is vent/overflow.
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Old 05-28-2013, 01:07 PM   #9
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Mine as well 312qbud, I thought maybe they were supposed to be joined and maybe a clamp was missing but I went to the lot and looked at two other same models, and they are all the same separated
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Old 05-28-2013, 02:11 PM   #10
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Awesome thanks guys! How do you drain your hot water tank? I noticed there are 2 hoses (one Red and one Blue) almost directly above the Grey/Black dump valves with screw on caps. Are these my low point drains, and is this how I drain the hot water tank?
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Old 05-28-2013, 02:20 PM   #11
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Awesome thanks guys! How do you drain your hot water tank? I noticed there are 2 hoses (one Red and one Blue) almost directly above the Grey/Black dump valves with screw on caps. Are these my low point drains, and is this how I drain the hot water tank?
Yes, those are your low point drains. There will also be a drain plug to remove on your hot water tank.
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Old 05-28-2013, 02:48 PM   #12
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A 1 1/16 socket at the bottom of the tank, which also is your anode, at least in most units.
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Old 05-28-2013, 10:12 PM   #13
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One is a low point drain the other is your overflow. You might want to ensure they didn't pit the low point valve on the wrong line. It has nothing to do with your water heater
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Old 05-28-2013, 10:14 PM   #14
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One is a low point drain the other is your overflow. You might want to ensure they didn't pit the low point valve on the wrong line. It has nothing to do with your water heater
I have the Hemisphere 300 BH. It has the same set up as yours
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Old 05-29-2013, 04:19 PM   #15
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A word of caution on draining the hot water tank by removing the anode...

Be sure to relieve the pressure by pulling the relief valve lever until it no longer hisses and drains water. If you have pressure in the hot water tank while removing the anode, it will probably shoot out of the tank pretty quickly (don't ask me why I know . The anode weighs enough to create a big bruise (not to mention getting hit by hot water if you're doing it shortly after shutting it off)...
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Old 08-05-2013, 08:37 PM   #16
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this is a bad setup for the overflow in the fresh water system as mine also started to flow well before the tank was actually full and it's almost impossible to haul fresh water as most of it will run out the overflow. I believe the overflow should be trapped to some extent by placing it above the level of the fresh water tank.
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