Are RV Sewer Drain Hoses Universal

Question:

Are sewer hose sizes universal? I have a 2011 harmony sunny point and need a hose.

asked by: Sally

Expert Reply:

There are generally two wastewater tanks on an RV. The grey water tank which contains waste from the sinks and the black water tank which contains waste from the toilet. The grey water tank generally uses a 1-1/2" diameter tubing whereas the black water tank generally uses a 3" diameter tubing. If you measure the diameter of the waste valve that should give you a good idea of what size you need but most do follow the 3" diameter for black and 1-1/2" diameter for grey standard.

In addition to the diameter of the waste valve, you also need to make note of the connection point. The standard connection point on a waste valve for the black water tanks is a lug fitting like part # T50. As long as you have the standard 3" diameter hose with the lug type connection point then the RhinoFLEX RV Sewer Hose w Swivel Fittings part # CAM39761 will work for you.

expert reply by: Conner L