Good Sam Club Open Roads Forum: Where's the bypass for the water heater?
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 > Where's the bypass for the water heater?

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atexintx

El Paso Texas

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Posted: 03/09/20 07:38pm Link  |  Quote  |  Print  |  Notify Moderator

I've got a 2010 Heartland Edge, 19' and want to sanitize my fresh water tank. I'm new to all this but I think I can do it myself if I know how to turn ON the bypass. The official manual does not have good pics.

Also, how do I drain the fresh water tank? (Keep it simple and pretend I'm in the 4th grade). I'm having trouble on these tanks. I know how to empty the grey and black tank, but in simple terms, how do I drain the FWT?

Thank you.

Lwiddis

Owens River Road, California

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Posted: 03/09/20 07:50pm Link  |  Quote  |  Print  |  Notify Moderator

A complete search of the underbelly of your trailer didn’t locate the fresh water drain value? (On your back with eye protection)


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Yosemite Sam1

Under the pines.

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Posted: 03/09/20 09:09pm Link  |  Quote  |  Print  |  Notify Moderator

1. The water heater by-pass is usually near the water heater tank. It's the red thingy lever. So, as I tell my 4th grader, if it is usually on, so turning it the other way will shut if off, lol.

2. There are drain tubes for fresh water tanks underneath your unit. Open it up and set aside the plug and water will drain. Mine have 3 of them for municipal water, fresh water storage tank and hot water tank or lines.

And welcome to RVing.

Wait for the fun part, dumping and draining the dark water tank.

winniman

muskoka Ontario

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Posted: 03/09/20 09:59pm Link  |  Quote  |  Print  |  Notify Moderator

There are different variations of bypasses. Most I have seen have been located on the back of the water heater. Sometimes you have to remove an access panel or drawer to get to them. They are generally a series of two or three valves. There is generally a cross over pipe between the ingoing water line, and the line leaving the hot water tank. You generally close the one going to the tank, and if it has three, you close the one leaving the tank. You then open the one that diverts the cold water from the inlet pipe to the crossover to the outlet pipe, thereby bypassing the tank. Some have valves in the water bay, but I think they only install them on higher end class A.

wnjj

Cornelius, Oregon

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Posted: 03/10/20 01:45am Link  |  Quote  |  Print  |  Notify Moderator

If you can find the FW drain, just run a faucet until it’s empty and then dump the gray tank. It will empty faster that way anyway.

Dick_B

Palos Heights, IL USA

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Posted: 03/10/20 06:49am Link  |  Quote  |  Print  |  Notify Moderator

Does every water heater have a bypass? Seems like an easy way to save manufacturing cost by not supplying one?


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schlep1967

Harrisburg, PA

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Posted: 03/10/20 07:27am Link  |  Quote  |  Print  |  Notify Moderator

Google "rv water heater bypass diagram" and look at the pictures.
As for the freshwater drain, look underneath the trailer directly below your water fill point. The drain valve may be on the other side of the trailer but it should be around that point in the trailer.


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kellem

Shenandoah valley,VA

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Posted: 03/10/20 07:59am Link  |  Quote  |  Print  |  Notify Moderator

Every trailer that I've owned and the ones I've helped the owners winterize have all had bypass valves.
When these valves are turned inline with the lines, water can access the water heater and visa versa.

What surprises me is seeing brand new trailers NOT being equipped with winterization kit, easy install but still.

I know several who actually use 9 gals of RV antifreeze to winterize simply because they won't bypass the water heater. Lol

kellem

Shenandoah valley,VA

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Posted: 03/10/20 08:05am Link  |  Quote  |  Print  |  Notify Moderator

OP, the Fresh water tank has to be equipped with a drain, it will be a single not far from tank.
Just don't confuse it with your low point drains,configured in doubles.

GrandpaKip

Flat Rock

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Posted: 03/10/20 09:01am Link  |  Quote  |  Print  |  Notify Moderator

If you are just sanitizing the FWT, no need to bypass anything. 1/4 cup bleach per 15 gallons added through the tank fill, run water pump through each faucet til you can smell chlorine. Let sit for a couple hours, then drain and rinse til smell is gone.


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