Donald,
If you look at the sani-con pump from under the motorhome, you will see a 2" section of clear hose or the black hose connecting to the output side of the pump. I removed the hose clamp and the hose, took it to my local Ace hardware store (they have all the little odd things the big stores don't stock) and bought a 2 foot section of clear hose of the same size. I also bought a "T" and a water valve and two stainless steel hose clamps. I put the water value into the top of the upside down "T". After I pulled the old back hose through the wall I connected it to one end of the "T", and put the new clear hose on the other end of the "T". Put your two new clamps on the hoses connected to the "T". I pushed the clear hose through the wall leaving about four or five inches showing. Going back under the motorhome I connected the new clear hose where the old hose connected to the pump, again using a hose clamp. I had to cut off some of the clear hose to make it fit, but I would rather have too much hose than not enough. I tightened all the hose clamps. All done, that simple.
Now when I use the hose, I remove the screw-on cap from the end of the hose and put it on the new water valve for storage. When back flushing, I can see what is flowing through the clear hose and I flush until it runs clear. After dumping, I remove the cap, open the valve, lift and shake the hose to get all the water out of the hose. THEN I CLOSE THE VALVE. This last step is very important, otherwise next time you turn on the pump, well you guess where the water is going.
I hope this helps you.
