Neutral: Black tank warranty

[jackhartjr]

I wonder how the subject even came up!
Jack

[jrlehr]

I drive a honey wagon and they have very strong suction. I would not pump out any unit. I can be 4-5 hoses out with each hose being 30' long and the suction would still pull the glove right off my hand. Even the blue storage totes, If they don't allow air while pumping, they will collaspe that as well. Just my .02

[wneise]

Is it one of those trucks that has a the tank mounted on the back and the pump is driven by the engine so kt can evacuate something like a grease tank at a fast food joint? Typically what I see at campgrounds are small trailer mounted pete tanks powers by a B&S engine so I wouldn't think they have the power you are talking about.

[jrlehr]

Yes, I drive a 4500 gallon truck. Even the smaller ones that do the port-a-pots have very strong pumps on them. Either way, I suggest not to do it. Their at the races to make $$, do you think they care what happens to your tanks?

[wneise]

Campgrounds are not. As I said before, they don't want to run the risk of a tank imploding and leaving crap all over one of their sites. BTW, here is another scenario. What about a family who thinks that the gray tank would stink up the place (don't know what a J trap is for) and plugs up the tub and sinks and then calls the honey wagon? Why should the issue be just with the black? My point has always been that the stack pipe should be able to let enough air back into a tank to overcome any honey wagon. Or how about this? What about the hose that runs from the take to the pump? Would it not collapse first? If not, someone should invent a vacuumed switch that will kill the pump when suction is to great. Then the wagon driver can tell someone to open the loo and let air in.