Is this actually possible??

[Johno02]

I drive a small Class A, but know little or nothing about the bigger bus styles and equipment. I just saw a article about thieves sucking sewage out of a big RV instead of fuel as they expected. Is that even possible?? Is there any type of opening into the black tanks that could be accessed with a siphon hose?? On ours the only access would be through to vent line on top.

[Groover]

I have heard of some pretty credible stories of people walking their dog being robbed of their poop bag.

[gfs1943]

Many years ago in the Charleston AF Base newspaper, there was a picture of a large hose connected to the waste drain on a C-141. The caption read (not an exact quote -- too many years!) "### Aerial Port Squadron members refueling a C-141 preparing for a mission to #####." We always wondered why the reporter/photographer didn't think it strange that the "refueling" truck wasn't yellow, and didn't say JP-4 on the side.

[westernrvparkow]

RedRollingRoadblock wrote:
https://www.snopes.com/fact-check/dreaded-unleaded/

I love Snopes.com. Thanks

[grampachet]

You can’t siphon chunks! But it makes a guy chuckle.

[oldave]

I have heard of thieves punching a hole in the fuel tank and using a couple
of buckets .
That might be a way they could possibly puncture the wrong tank on some rigs .

[RedRollingRoadb]

https://www.snopes.com/fact-check/dreaded-unleaded/

[hotjag1]

I've read this scenario numerous times over the years. If you think about it, the holding tanks and slide valves are down low near the bottom of a coach. No need to "siphon" just pull the slide valve and have a funnel handy to direct the flow wherever you want it. Fuel fill inlets are usually up much higher on the side or rear of a coach. I say urban legend!

[downtheroad]

Sure it's possible if you are stupid....
I say, Welcome to it."......:S

[Ivylog]

Maybe the water tank fill with the locking door and plastic cap but not the waste tanks.

[Executive45]

Only if you hooked the siphon hose to the waste valve. Even then waste is discharged via gravity so no, it's a myth that makes for a funny story. It won't work with a Y connector as in the movie RV either....but it makes everyone smile....Dennis

[wa8yxm]

Johno02 wrote:
I drive a small Class A, but know little or nothing about the bigger bus styles and equipment. I just saw a article about thieves sucking sewage out of a big RV instead of fuel as they expected.

No at least not on any RV I have ever seen. You have the following openings into the black tank.
Vent pipe (up on roof no thief is gonna think that's a fuel port) Toilet.. Dump valve (on bottom).. Now fresh water. That could be confused but never black .

[et2]

Not on ours. It's locked in the wet bay. Can't imagine someone confusing it if possible.

But I'd love to watch that happen!! If it were thieves of course.

[opnspaces]

I've read this many times over the years on the forum. I too think it's just an urban legend. I cant imagine any access to the tanks that would be mistaken for a fuel fill.

[gbopp]

I've read this story a few times. I think it's just an urban legend.
I don't know of any opening you could use to siphon from the black or grey tank.
Maybe RV's from the 70's had some sort of access? I don't know what it's purpose would be.