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Hot Water Heater Bypass and Water Pump Siphon Hose
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2545 Posts
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December 15, 2015 – 8:51 am
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Last weekend I finally got around to winterizing my camper.  I needed to install a Hot Water Heater bypass so I didn’t have to waste 6 gallons of RV antifreeze.  I also needed to add a siphon hose to my water pump to suck up the antifreeze.  I am not a fan of dumping antifreeze in the fresh water tank.  The HWH bypass cost $30 at my local RV store.  They threw in the fitting for the water pump and I had some hose in the garage.  In total I think I spent 30-45 minutes doing this.  I only used 1 adjustable wrench and some Teflon tape that came with the HWH bypass kit.

Here is the back of the HWH before the bypass.
[IMG]http://i1357.photobucket.com/albums/q752/CamperDude/hwh5_zpswrxyqrdp.jpg[/img]

I simply unscrewed the existing water lines and installed these T valves (I’m not a plumber, there may be a more specific name for it)
[IMG]http://i1357.photobucket.com/albums/q752/CamperDude/hwh%203_zpsaka3xciy.jpg[/img]

Then I just screwed the original water lines to the new fittings and the little bypass hose.
[IMG]http://i1357.photobucket.com/albums/q752/CamperDude/hwh2_zpslc88hdvv.jpg[/img]

For the water pump I just unscrewed the water inlet line
[IMG]http://i1357.photobucket.com/albums/q752/CamperDude/hwh10_zpsr9ur4dum.jpg[/img]

I put the hose onto the fitting
[IMG]http://i1357.photobucket.com/albums/q752/CamperDude/hwh9_zpscuywwnu1.jpg[/img]

Screwed the siphon hose to the water inlet and put the other end in the jug-o-antifreeze
[IMG]http://i1357.photobucket.com/albums/q752/CamperDude/hwh7_zps1iedqcax.jpg[/img]

Matt O 2006 Skyline Nomad 27′ travel trailer.  Previously owned 1986 Coleman Columbia / 1992 Coleman Senecca / 1989 Born Free Class C RV.

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January 1, 2016 – 10:37 am
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I’m impressed that you placed the valves in the correct places. You did a nice job. Well Done! Only thing I might add here is… IF you use your water pump often during summertime. I would install a protector (screen/filter). It installs just like your bypass (siphon hose) fitting did. It goes immediately at the inlet to your pump. The place where the line goes into it right now. (In other words, it is an inline filter). They don’t cost that much, and keeps the particles from entering (and eventually) ruining your pump.  —  If the only time you use your pump is to winterize, then don’t worry about it.

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January 4, 2016 – 8:49 am
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I use one of these water filters when I am camping.  I assume it has a similar screen to keep particles out. 

[IMG]http://i1357.photobucket.com/albums/q752/CamperDude/water%20filter_zpsr1ribt7h.jpg[/img]

Matt O 2006 Skyline Nomad 27′ travel trailer.  Previously owned 1986 Coleman Columbia / 1992 Coleman Senecca / 1989 Born Free Class C RV.

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Eastern Pennsylvania
3701 Posts
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January 4, 2016 – 5:40 pm
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we do not currently have a bypass for the water heater but high on the mod list.

JoeCamper, EwwwBugs, 4 kids, 2dogs and whatever else fits in my truck.
04 Dodge Ram 1500, 2010 Coleman Avalon

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