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11-20-2015, 02:37 PM
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#1
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Junior Member
Join Date: Nov 2015
Posts: 22
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Suburban Water Heater Drain
I have a 2016 Classic Super Lite 831RLBSS that I'm trying to winterize. The sales people were no help when it came time for the walk-around concerning much of anything about the travel trailer and the "Owners Manual" was generic at best. Needless to say I plan on posting a lot of questions. First: how do you drain the water heater? I configured the bypass valves in the back of the unit and opened the pressure relief valve. There doesn't seem to be anything on the bottom of the unit except what looks like the (anode?). How can I tell if the water heater is empty? Again, the owners manual was of little help. 
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11-20-2015, 02:43 PM
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#2
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Site Team
Join Date: Sep 2014
Location: Northen IL
Posts: 8,320
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Take the anode out.
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11-20-2015, 03:09 PM
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#3
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Senior Member
Join Date: Sep 2010
Location: Eastern Ontario
Posts: 4,167
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Use 1 1/16 inch socket
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Fonzie
2011 Rockwood 8319SS with ProPride 3P hitch/GoodYear Marathons/TST TPMS 507
2019 F350 Ruby Red 6.7l diesel 3.31 axle electronic locker
Yamaha 3000iseb generator:Progressive Ind. EMS-HW30C : Eastern Ontario
Nights Camped: 2014 (18) 2015 (18) 2016 (36) 2017 (32) 2018 (42) 2019 (28) 2020 (35)
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11-20-2015, 03:45 PM
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#4
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Pickin', Campin', Mason
Join Date: Aug 2015
Location: South Western PA
Posts: 19,144
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You have to remove the anode rod.
(See where I marked your photo)
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2022 Cedar Creek 345IK 5th Wheel•Solar & Inverter•2024 Ford F-Series SCREW•7.3L•4x4•Factory Puck•B&W Companion•TST Tire Monitor w/Repeater•Sinemate 3500w Gen.
F&AM Lodge 358 Somerset, PA - JAFFA Shrine - Altoona, PA
Days Camped ☼ '19=118 ☼ '20=116 ☼ '21=123 ☼ '22=134 ☼ '23=118☼ '24=90
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11-20-2015, 04:57 PM
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#5
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Junior Member
Join Date: Nov 2015
Posts: 22
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Thanks. I removed the rod and the water heater drained.
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11-20-2015, 05:03 PM
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#6
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Senior Member
Join Date: Aug 2013
Location: Orange Park Fl.
Posts: 1,876
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Quote:
Originally Posted by PCStrope
Thanks. I removed the rod and the water heater drained.
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When you reinstall the anode, put no more than 1 1/4 turns of Teflon tape on the threads.
Snug the anode down to where it does not leak. Suburban calls for 7 foot pounds of torque, but not leaking is good. Some leave the anode out until they de-winterize, but I don't recommend that. You want the anode to do what it is supposed to do all of the time.
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2014 Solera 24R
USN Retired
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11-20-2015, 05:14 PM
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#7
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Site Team
Join Date: Sep 2014
Location: Northen IL
Posts: 8,320
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Quote:
Originally Posted by Mikegjax
When you reinstall the anode, put no more than 1 1/4 turns of Teflon tape on the threads.
Snug the anode down to where it does not leak. Suburban calls for 7 foot pounds of torque, but not leaking is good. Some leave the anode out until they de-winterize, but I don't recommend that. You want the anode to do what it is supposed to do all of the time.
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The only reason I leave the anode in when I winterize is to keep the threads from getting all rusted up. It doesn't really serve much other purpose if there's no water in the tank.
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11-20-2015, 05:30 PM
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#8
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Pickin', Campin', Mason
Join Date: Aug 2015
Location: South Western PA
Posts: 19,144
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Quote:
Originally Posted by Iwritecode
The only reason I leave the anode in when I winterize is to keep the threads from getting all rusted up. It doesn't really serve much other purpose if there's no water in the tank.
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I agree and will add reinstalling also keeps bugs, spiders or anything else out of an empty tank.
__________________
2022 Cedar Creek 345IK 5th Wheel•Solar & Inverter•2024 Ford F-Series SCREW•7.3L•4x4•Factory Puck•B&W Companion•TST Tire Monitor w/Repeater•Sinemate 3500w Gen.
F&AM Lodge 358 Somerset, PA - JAFFA Shrine - Altoona, PA
Days Camped ☼ '19=118 ☼ '20=116 ☼ '21=123 ☼ '22=134 ☼ '23=118☼ '24=90
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11-20-2015, 06:02 PM
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#9
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Senior Member
Join Date: Aug 2013
Location: Orange Park Fl.
Posts: 1,876
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Quote:
Originally Posted by Iwritecode
The only reason I leave the anode in when I winterize is to keep the threads from getting all rusted up. It doesn't really serve much other purpose if there's no water in the tank.
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If the threads are rusting, what do you think is going on in that steel tank.
Just a thought. The anode is sacrificial metal that will corrode (oxidize) first due to the electrolytic action between the steel and the anode as long as there is air and humidity. You ever see a piece of steel laying in a garage out of the rain rust ? That's just me.
__________________
2014 Solera 24R
USN Retired
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11-21-2015, 01:31 PM
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#10
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Senior Member
Join Date: Feb 2015
Posts: 114
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Quote:
Originally Posted by Iwritecode
The only reason I leave the anode in when I winterize is to keep the threads from getting all rusted up. It doesn't really serve much other purpose if there's no water in the tank.
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"DITTO"
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FOREST RIVER FW 8524RLWS
2010 FORD F 150 5.4
#1-18' Nomad #2- 20' Mallard #3- 27' Sunline #4- Four Winds C #5- Innsbruck 40' PARK # 6- 28' Amerilite #7- Forest River 26.5 FW ( 1st FW)
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11-21-2015, 01:54 PM
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#11
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Member
Join Date: May 2015
Location: New Zealand
Posts: 59
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Low Point Drains
Im storaging for summer for six months, so no threat of freezing. Are the low point drains (fulltime plumbed connectors) enough to empty hot and cold waters? Or should I take the hot water plug out and empty the filter?
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11-21-2015, 05:09 PM
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#12
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Junior Member
Join Date: Jul 2015
Posts: 1
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+Suburban heater drain
Note: Plug requires 1 1/16 socket. I made two trips to Lowes before I got the right size socket. All my socket sets stopped at 3/4 inch. Draining g is easy once you break it loose.
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11-21-2015, 05:43 PM
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#13
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Too old to be too smart
Join Date: Apr 2012
Location: La La Land
Posts: 439
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The truck-size tire rim lug "star" wrench has a 1-1/16, as well. The lug wrench makes removing it easy.
The only caution is when you replace the anode to not over-tighten it if using that wrench, because you easily CAN!
Pop
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Terry 250RKS, perfect for the two of us and the pups.
2000 F-350 7.3L CC/LB 4WD Lariat 3.73's
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11-21-2015, 05:50 PM
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#14
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Senior Member
Join Date: Mar 2014
Location: in the South, North West Middle Tennessee
Posts: 1,551
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I've got the same WH, 27mm works just as well. Mark it with a Sharpie because next year you will ask the same question, "what size is it?"
__________________
2017 F350 Dually 6.7
2019.5 Hathaway
He who dies with the most tools, wins!
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11-21-2015, 05:54 PM
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#15
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Senior Member
Join Date: Apr 2012
Posts: 520
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Quote:
Originally Posted by Mikegjax
If the threads are rusting, what do you think is going on in that steel tank.
Just a thought. The anode is sacrificial metal that will corrode (oxidize) first due to the electrolytic action between the steel and the anode as long as there is air and humidity. You ever see a piece of steel laying in a garage out of the rain rust ? That's just me.
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The electrolytic action with air and humidity in an empty HW tank.........can you explain that?......a friend was asking.
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11-21-2015, 07:05 PM
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#16
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Junior Member
Join Date: Sep 2015
Posts: 28
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I went one step farther. Threaded a piece of 3/4 PVC , pull the anode and insert the 3/4PVC and all the water drains out side and when finished the PVC stores upright in the corner.
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11-21-2015, 07:54 PM
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#17
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Senior Member
Join Date: Jul 2010
Location: Waynesville
Posts: 14,428
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Quote:
Originally Posted by gunpro
I went one step farther. Threaded a piece of 3/4 PVC , pull the anode and insert the 3/4PVC and all the water drains out side and when finished the PVC stores upright in the corner.
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The 3/4 PVC pipe reduces the drain hole,better to not have for additional opening size!  Youroo!! 
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11-21-2015, 07:57 PM
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#18
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Senior Member
Join Date: Jul 2010
Location: Waynesville
Posts: 14,428
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Quote:
Originally Posted by PCStrope
I have a 2016 Classic Super Lite 831RLBSS that I'm trying to winterize. The sales people were no help when it came time for the walk-around concerning much of anything about the travel trailer and the "Owners Manual" was generic at best. Needless to say I plan on posting a lot of questions. First: how do you drain the water heater? I configured the bypass valves in the back of the unit and opened the pressure relief valve. There doesn't seem to be anything on the bottom of the unit except what looks like the (anode?). How can I tell if the water heater is empty? Again, the owners manual was of little help. Attachment 94667 |
Note,dont forget to return the pressure relief valve to it Seated location! Youroo!!
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11-22-2015, 01:36 AM
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#19
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Senior Member
Join Date: Oct 2015
Posts: 2,404
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Quote:
Originally Posted by sgh77
Im storaging for summer for six months, so no threat of freezing. Are the low point drains (fulltime plumbed connectors) enough to empty hot and cold waters? Or should I take the hot water plug out and empty the filter?
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The low point drains will drain the lines but not the water heater. To keep the water from getting stinky, even though you are not looking at freezing temps, draining the heater would be a good idea. There is also water below the water heater drain point you can flush and siphon out.
PS: Atwood users, the plug is 15/16"
Land of 10,000 Lakes
2016 Forester MBS 2401R
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2016 FR Forester 2401R
Towing 2014 Honda CR-V
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11-22-2015, 04:40 AM
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#20
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Member
Join Date: May 2015
Location: New Zealand
Posts: 59
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Quote:
Originally Posted by MNtraveler
The low point drains will drain the lines but not the water heater. To keep the water from getting stinky, even though you are not looking at freezing temps, draining the heater would be a good idea. There is also water below the water heater drain point you can flush and siphon out.
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Cheers for that
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