Good Sam Club Open Roads Forum: Camper black water tank fluid heats up
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 > Camper black water tank fluid heats up

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tictacball

Vancouver Island

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Posted: 07/21/20 06:10pm Link  |  Quote  |  Print  |  Notify Moderator

We do a lot of winter camping and always thought the furnace was keeping the holding tanks nice and warm. This past trip we noticed that the black water tank was especially hot and the furnace was not used. The only heat source was possibly the water heater. It had been left on over night by accident. The pump was off, but the black water was steaming! Any ideas before we climb in underneath to have a look at what could possibly be the problem?

enblethen

Moses Lake, WA

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Posted: 07/21/20 06:27pm Link  |  Quote  |  Print  |  Notify Moderator

Do you have tank heaters to prevent them freezing?
Make and model of rig?


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LadyRVer

Florida

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Posted: 07/21/20 07:16pm Link  |  Quote  |  Print  |  Notify Moderator

Sounds like tank heaters are turned on. Kind of like "heated mirrors."

BobsYourUncle

Calgary Alberta Canada

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Posted: 07/21/20 08:43pm Link  |  Quote  |  Print  |  Notify Moderator

Did you have bean burritos for dinner before this happened? [emoticon]
[emoticon]


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wa8yxm

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Posted: 07/22/20 04:47am Link  |  Quote  |  Print  |  Notify Moderator

You may as others have suggested have tank heaters turned on (Electric heaters)
Also black tank contents do tend to be warmer not hot but warmer due to biological activity. But I'd not expect it to be more than a few degrees.

Hot water does not normally go into the black tank. well 98.6 degrees but that is Luke Warm.


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2012Coleman

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Posted: 07/22/20 06:11am Link  |  Quote  |  Print  |  Notify Moderator

How do you know that the "black water tank fluid" is hot? [emoticon]


Experience without good judgment is worthless; good judgment without experience is still good judgment!

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Horsedoc

Dixie --- N. Georgia

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Posted: 07/22/20 07:02am Link  |  Quote  |  Print  |  Notify Moderator

2012Coleman wrote:

How do you know that the "black water tank fluid" is hot? [emoticon]


I had the same thought [emoticon]

dougrainer

Carrolton, Texas

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Posted: 07/22/20 08:19am Link  |  Quote  |  Print  |  Notify Moderator

1. MOST tank heaters are 12 volt and could NEVER heat the contents hot enough to notice.
2. MOST Tank heaters have a built in Tstat in the connection at the tank heater, so they would not operate above 40 degrees ambient temp
3. STEAMING Water from the Black Tank?????????? I would check your diet, not worry about heat from the RV systems[emoticon]
4. Your Water Heater regardless of proximity to ANYTHING cannot transmit any excess heat, especially to a Black tank or Gray tank.
5. Yes, you are going to have to climb underneath to determine what is happening.
6. Now, it IS possible you have a HOT Water line connected to the toilet instead of a COLD water line. THAT is easy to verify. Run the toilet flush and put your hand on the Water Intake line behind the toilet. IF it is HOT/VERY warm, that is how you are getting hot water to the toilet, but still, enough to cause the Tank to "steam"? NO WAY. Doug

Camreal

Kerrville, Tx

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Posted: 07/22/20 08:23am Link  |  Quote  |  Print  |  Notify Moderator

Could be chemical reaction

mobeewan

Hampton, Va

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Posted: 07/22/20 08:23am Link  |  Quote  |  Print  |  Notify Moderator

Horsedoc wrote:

2012Coleman wrote:

How do you know that the "black water tank fluid" is hot? [emoticon]


I had the same thought [emoticon]


By handling the hoses while dumping or touching the outside of the tank while underneath if it is uncovered.

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