Sewer hoses April 12, 2014, 04:00:13 am Yahoo Message Number: 145725The last I noticed there were three types of hoses available. Most of them are 20' long and can have various fittings on the ends. The cheapest hose has pretty thin vinyl, over a steel, I'll call it a 'slinky' spring support to keep it open. Because the vinyl is thin, it folds up the most, into the most compact size. Dragging it across concrete or asphalt just a few times will cause it to spring small leaks. The more expensive hoses have the thickest vinyl, and best support slinky. While much more durable, the thickness of the vinyl prevents it from collapsing much, so it might not fit in a short storage space. The third option is in the middle as a compromise between cost, length, and durability. On my TKB (a 1999) I had to shorten the storage tube to make room for a leveler jack. I store a shortened cheap hose there with just the fitting to hook on the tank outlet. I use that one to dump with. I installed another hose door with the flex corrugated hose left over from the shortened storage hose to a rigid piece of ABS 4"pipe across the motorhome underneath. It is attached with plumbing tape to the frame, and isn't really visible unless you get underneath. I store a thick, better quality hose with fittings at each end, in this pipe. At about 7 1/2 feet long there is plenty of room. A snap on, screw in fitting (stored in a zip-loc bag in a storage compartment) allows for a leak free connection for hooking up in a campground. Having two hoses can come in handy, providing more options. The weight and cost was minimal. Hope this clears up why some hoses will or won't fit in some motorhome floor plans. RonB