Donuts?

[Glenn Baglo]

Well, I was going to ask. Seems to me that raising the drain above the ground just increases the potential for leaks, since I assume the hose is sagging on the ground between the RV and the drain ( so they can sell you one of those trestle support systems? ). Some of those low-rider Scamps and Bolers might have a problem. And, I would think that donut is now sideways, so it's not going to help, without some seal beyond pushing the hose into the funnel.
All the campgrounds I've been in have a cap for the dump, or a threaded lid, so I don't get the rainwater theory.

[Alf S.]

Hi: Glenn Baglo... I've never been able to get "Theory" to work!!! Kinda like getting water to run up hill.
Alf S. North shore of Lake Erie

[Lora]

Could someone possibly post a pic of a sewer donut in use? (We do love pics, right?) And, has anyone tried these?

[rabbit]

Tis not ours to resent why. Ours alone to buy and buy. Stinks donut?

jack

[Brian B-P]

Originally Posted by Glenn Baglo

Seems to me that raising the drain above the ground just increases the potential for leaks, since I assume the hose is sagging on the ground between the RV and the drain ( so they can sell you one of those trestle support systems? ). Some of those low-rider Scamps and Bolers might have a problem.

I completely agree, and my B1700 - much taller than a B1300 - would be a concern. The raised drain is a crappy design...

Originally Posted by Glenn Baglo

And, I would think that donut is now sideways, so it's not going to help, without some seal beyond pushing the hose into the funnel.

I have not used one of these things, but i assume that it is somewhat soft (since it is made of foam rubber), and squeezes into the space between the hose end fitting and the pipe, like a bushing or O-ring. As long as you don't pressurize the waste hose enough to shoot it out of the drain pipe, I can see it working.

Originally Posted by Glenn Baglo

All the campgrounds I've been in have a cap for the dump, or a threaded lid, so I don't get the rainwater theory.

They usually have caps, often but not always threaded, and sometimes left open by departing campers... but as I said it was a guess, not a well-developed theory!