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Old 12-07-2015, 06:50 AM   #11
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We have a 2013 Rockwood 2608 ws and need some help on how to drain the hot water tank for storage tried to drain using bypass valve. The tank still won't empty. Can someone please tell me the steps to accomplish this task. Thanks
Disconnect City Water feed,turn off Fresh Water Pump! Now Open a Hot and Cold Faucet,now remove the A-Rod pipe plug! After the Heater Tank has drained,NOW place the Bypass Valves in (Winter Location) and Open your H & C Low Point Drains,now Open ALL of your Faucets,Showers,Depress your Flush valve on Toilet,and Remove screen at City Water Entrance and Depress Small Check valve! Now you can (Blow the Lines and/or Pump RV Antifreeze thru your system! This Sequence Prevents Hot Water Tank White Crud from Leaving the Tank and Going Downstream to be found later in Faucets and Valves! Youroo!! PS Turn OFF Both Elect sources ( Switch behind O/S Door and also the Breaker at your Main Control Panel)! Better Safe than Sorry!
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Old 12-07-2015, 12:58 PM   #12
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Also helps to open hot water faucet.
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Old 12-07-2015, 05:50 PM   #13
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Joe-Barb
wmtire has it peg.IF your Hotter Heater is like most of ours follow wmtire's thread. Great visuals.

asquared are those a pair of FRIESIANS?

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Old 12-07-2015, 06:06 PM   #14
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Hello and welcome to the forum. Make sure water us cool first. Go to the outside panel and remove it. (This will likely be a metal square panel on the side wall of your trailer) There will be an overflow valve to flip to bleed off the pressure. Once the pressure has bled off, then remove the drain plug/anode rod. Leave the overflow valve open while draining.
Make sure that the pressure switch is closed before removing anode and do not stand if front while removing as you will get a bath once you open pressure relive valve. Also complete draining of hot water tank will not occurr as I took a syringe with long flexible hose and drew out almost 3/4 gal of water. Later RJD
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Old 12-08-2015, 10:35 AM   #15
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If you have a storage compartment below the W/H,,,
Make sure the door is closed tight,,,
And make sure it is dry when you get done !!!
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Old 12-08-2015, 11:29 AM   #16
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I always seem to have a little water left in the tank after draining so I take a small siphon hose and get most of it out before I add just a little antifreeze to it.
It works for me.
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Old 12-08-2015, 11:39 AM   #17
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I always seem to have a little water left in the tank after draining so I take a small siphon hose and get most of it out before I add just a little antifreeze to it.
It works for me.
It's typically not recommended to put AF in your water heater. That's the whole point of the bypassing system.
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Old 12-08-2015, 11:47 AM   #18
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It's typically not recommended to put AF in your water heater. That's the whole point of the bypassing system.
^^X2^^
No need for antifreeze in the tank.
You've already drained and siphoned any remaining water in there.
Nothing to freeze, nothing that needs protected by antifreeze.
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Old 12-08-2015, 12:22 PM   #19
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^^X2^^
No need for antifreeze in the tank.
You've already drained and siphoned any remaining water in there.
Nothing to freeze, nothing that needs protected by antifreeze.
Even if some remaining water in the tank DOES freeze, what's the harm as long as there is room for expansion? For many winters I have just drained the water heater, replaced the anode rod and forgot about it. Never a problem. If water has room to expand when it freezes, it won't hurt anything.
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Old 12-08-2015, 01:23 PM   #20
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Even if some remaining water in the tank DOES freeze, what's the harm as long as there is room for expansion? For many winters I have just drained the water heater, replaced the anode rod and forgot about it. Never a problem. If water has room to expand when it freezes, it won't hurt anything.
No harm whatsoever.

Many folks don't siphon the remaining small amount of water from the tank after pulling the tank plug or anode rod. Just like you said, if that little bit of water freezes it won't hurt a thing. Same as if the dog's water bowl sits outside on a cold night, the water will freeze but not hurt the bowl. I believe most do siphon just to keep from having a small amount of stagnate water sitting in the tank for several months or to simply get it as clean as possible.

I was merely replying to the post where the guy said he drained, siphoned and then added a little antifreeze to the tank. No need for that.
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