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09-23-2017, 10:58 PM
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#1
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Senior Member
Join Date: Jun 2015
Location: Southern California
Posts: 2,087
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Only one low point drain?
My 03 Winnebago Minnie had 2 low point water drains, one hot and one cold. My 2016 Forester 2701ds only has a red capped tube accessed underneath at rear next to the blue fresh water tank drain. How does the low point hot waterline drain assuming the red line is cold?
__________________
2004 Winnebago Minnie 22e(went to a nice family Oct 3, 2015)
2016 Forester 2701DS (Aug 31, 2015)
2017 Camping 12 trips 38 nights
2018 Camping 10 trips 38 nights
2019 Camping 6 trips 19 nights
2020 Camping 0 trips Cancellations 6
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09-23-2017, 11:03 PM
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#2
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Senior Member
Join Date: Oct 2013
Location: Florida
Posts: 1,363
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It's all one. When you put your hot water heater in bypass mode the hot and cold water lines are connected and the red line is the low point for both.
__________________
2016 Forester GTS 2801QSF 
2011 Jeep JK Toad
Habitual RV Modifier
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09-23-2017, 11:15 PM
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#3
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Senior Member
Join Date: Jun 2015
Location: Southern California
Posts: 2,087
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Quote:
Originally Posted by sgtlm17
It's all one. When you put your hot water heater in bypass mode the hot and cold water lines are connected and the red line is the low point for both.
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I live in SoCal and we don't need to winterize,but for long periods of no RV use, I want to drain the lines. Is the water heater bypass behind a panel at the water heater? If so, I have a bunch of valves. Which one.
__________________
2004 Winnebago Minnie 22e(went to a nice family Oct 3, 2015)
2016 Forester 2701DS (Aug 31, 2015)
2017 Camping 12 trips 38 nights
2018 Camping 10 trips 38 nights
2019 Camping 6 trips 19 nights
2020 Camping 0 trips Cancellations 6
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09-24-2017, 11:29 PM
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#4
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Senior Member
Join Date: Oct 2013
Location: Florida
Posts: 1,363
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__________________
2016 Forester GTS 2801QSF
2011 Jeep JK Toad
Habitual RV Modifier
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09-25-2017, 11:00 PM
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#5
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Senior Member
Join Date: Jun 2015
Location: Southern California
Posts: 2,087
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Quote:
Originally Posted by sgtlm17
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Great! So then the hot water line will drain using the cold in line going to the water heater. Just turn the 3 valves and should all drain out the low point.
Thanks 
__________________
2004 Winnebago Minnie 22e(went to a nice family Oct 3, 2015)
2016 Forester 2701DS (Aug 31, 2015)
2017 Camping 12 trips 38 nights
2018 Camping 10 trips 38 nights
2019 Camping 6 trips 19 nights
2020 Camping 0 trips Cancellations 6
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09-25-2017, 11:05 PM
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#6
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Senior Member
Join Date: Oct 2013
Location: Florida
Posts: 1,363
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Yes the bypassed position. The hot and cold connecting to WH closed and the center valve open create all one plumbing system
__________________
2016 Forester GTS 2801QSF
2011 Jeep JK Toad
Habitual RV Modifier
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09-26-2017, 04:14 AM
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#7
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Senior Member
Join Date: Jun 2016
Location: Maurice, LA
Posts: 4,095
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Quote:
Originally Posted by Sagecoachdriver
Great! So then the hot water line will drain using the cold in line going to the water heater. Just turn the 3 valves and should all drain out the low point.
Thanks |
I have never trusted the low point drains.
My solution is to use compressed air at the city water inlet to blow the water from all the lines one outlet at a time. Takes two people, one to run the air and one to open the valves but it works perfectly.
To test it do the low point drain til nothing else drains out. Then use my method. You will be amazed at how much water is trapped above those low point drains
__________________
2012 Wildcat Sterling 32RL, Gladiator Qr35 ST235/85R16 Load rating G, TST 507 TPMS w/ Flow-thru Sensors & Repeater, Reese Sidewinder 16K Pin Box, PI EMS HW50C
2009 Chevy Silverado 2500HD CCSB LTZ Diesel, Fumoto Oil Drain Valve, Turbo Brake activated, 39 gal Aux Tank W/ Fuel Pump transfer, Air Lift Loadlifter 5000 air bags.
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09-26-2017, 04:41 AM
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#8
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Wait till next year...
Join Date: Jan 2015
Location: Southern Worcester County
Posts: 1,135
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X2 Blowing out lines with compressed air will clear trapped pockets of water in the lines. I dont use more than 40# and dont forget the outside shower 
__________________
Mary and Me
2015 2650s "Finally" SOLD
2015 Jeep Cherokee Toady
2023 Geo Pro FD19 "Almost there"
2022 Race Car Red HR Long Ford Transit 250 "The Iwish Roamer"
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09-26-2017, 05:39 AM
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#9
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Senior Member
Join Date: Jun 2016
Location: Maurice, LA
Posts: 4,095
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Quote:
Originally Posted by n-e-d
X2 Blowing out lines with compressed air will clear trapped pockets of water in the lines. I dont use more than 40# and dont forget the outside shower |
Forgot it ONCE. Had it crack and had to replace it. Not expensive or difficult, just a PITA because I forgot it. Won't make that goof again.
And you are correct, you do not need much pressure
__________________
2012 Wildcat Sterling 32RL, Gladiator Qr35 ST235/85R16 Load rating G, TST 507 TPMS w/ Flow-thru Sensors & Repeater, Reese Sidewinder 16K Pin Box, PI EMS HW50C
2009 Chevy Silverado 2500HD CCSB LTZ Diesel, Fumoto Oil Drain Valve, Turbo Brake activated, 39 gal Aux Tank W/ Fuel Pump transfer, Air Lift Loadlifter 5000 air bags.
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09-26-2017, 06:11 AM
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#10
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Senior Member
Join Date: Oct 2013
Location: Florida
Posts: 1,363
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Quote:
Originally Posted by n-e-d
X2 Blowing out lines with compressed air will clear trapped pockets of water in the lines. I dont use more than 40# and dont forget the outside shower |
Yes you still must blow out lines or pump antifreeze through lines. Water will sit in plumbing low spots and bends.
__________________
2016 Forester GTS 2801QSF
2011 Jeep JK Toad
Habitual RV Modifier
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09-26-2017, 09:26 AM
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#11
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Senior Member
Join Date: Oct 2016
Posts: 278
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We have a 2005 Forester 29 Class C. I haven't been able to locate the water heater bypass and don't want to just pull off panels willy-nilly. Anyone know where the bypass is on this old timer? Thanks,
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09-26-2017, 10:07 AM
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#12
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Senior Member
Join Date: Jun 2016
Location: Maurice, LA
Posts: 4,095
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Quote:
Originally Posted by sgtlm17
Yes you still must blow out lines or pump antifreeze through lines. Water will sit in plumbing low spots and bends.
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And for me the air is free, the anti freeze costs money. I only use that in the 3 P Traps and on top of toilet seal. About a quart total is all that takes.
__________________
2012 Wildcat Sterling 32RL, Gladiator Qr35 ST235/85R16 Load rating G, TST 507 TPMS w/ Flow-thru Sensors & Repeater, Reese Sidewinder 16K Pin Box, PI EMS HW50C
2009 Chevy Silverado 2500HD CCSB LTZ Diesel, Fumoto Oil Drain Valve, Turbo Brake activated, 39 gal Aux Tank W/ Fuel Pump transfer, Air Lift Loadlifter 5000 air bags.
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09-26-2017, 12:30 PM
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#13
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Wait till next year...
Join Date: Jan 2015
Location: Southern Worcester County
Posts: 1,135
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Quote:
Originally Posted by ralphbeacham
We have a 2005 Forester 29 Class C. I haven't been able to locate the water heater bypass and don't want to just pull off panels willy-nilly. Anyone know where the bypass is on this old timer? Thanks,
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I'd start looking for the outside access panel then for the inside trim panel at the bottom of the cabinets directly behind the outside panel 
__________________
Mary and Me
2015 2650s "Finally" SOLD
2015 Jeep Cherokee Toady
2023 Geo Pro FD19 "Almost there"
2022 Race Car Red HR Long Ford Transit 250 "The Iwish Roamer"
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09-26-2017, 02:54 PM
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#14
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Senior Member
Join Date: Jun 2016
Location: Maurice, LA
Posts: 4,095
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Quote:
Originally Posted by ralphbeacham
We have a 2005 Forester 29 Class C. I haven't been able to locate the water heater bypass and don't want to just pull off panels willy-nilly. Anyone know where the bypass is on this old timer? Thanks,
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The bypass system is usually located directly behind your water heater.
Find an access panel by looking at where the water heater is located and a panel that would allow you to look at the very back or side of it.
__________________
2012 Wildcat Sterling 32RL, Gladiator Qr35 ST235/85R16 Load rating G, TST 507 TPMS w/ Flow-thru Sensors & Repeater, Reese Sidewinder 16K Pin Box, PI EMS HW50C
2009 Chevy Silverado 2500HD CCSB LTZ Diesel, Fumoto Oil Drain Valve, Turbo Brake activated, 39 gal Aux Tank W/ Fuel Pump transfer, Air Lift Loadlifter 5000 air bags.
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09-27-2017, 12:22 AM
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#15
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Senior Member
Join Date: Mar 2015
Location: Utah
Posts: 642
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Quote:
Originally Posted by DouglasReid
The bypass system is usually located directly behind your water heater.
Find an access panel by looking at where the water heater is located and a panel that would allow you to look at the very back or side of it.
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On our 3171 the water heater is near the kitchen sink. Had to pull the bottom drawer out completely to access the water lines and valves.
__________________
1968 tent trailer
1985 Jamboree 23 ft
1997 Minnie Winnie 25 Ft
2016 Forester 3171DS (ordered March & arrived June 2015)
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Linear Mode
