There are a number of things that can happen to your sewer hose. It can be stepped on, hit with a lawn mower, or bent by closing it a compartment door to name a few. However, the most common failure is pinholes—those tiny holes that seem to appear in the plastic covering. And they leak.
Where do they come from? Usually, they are caused by you and the way you handle your sewer hose. It is common to see RVers just drag their sewer hose across the ground, or cinders, or gravel, or concrete, or asphalt to hook up their coach and then drag it back when they are unhooking and getting ready to leave.
Dragging it, especially across sharp stones such as gravel or cinders on a site, will rapidly cause tiny pinholes to be rubbed through or actually cut through the plastic covering of the hose. Actually, you can instantly ruin a new hose by doing this.
So, pick up the hose. If you don’t want it to drip, pick it up at both ends. If you don’t care that it drips, please don’t camp where I do!!!
Also, for those of you with a macerator pump (a sewage pump and grinder), dragging your hose will also increase the potential for damage and these are significantly more expensive than the “normal” brown “stinky slinky.”