1986 Classic 40' #121 owner here. Some past owner jury rigged the grey water plumbing where it enters the waste tank. Anyone have a picture of what it is supposed to look like? I attached a picture of their handiwork.
Your last photo looks original except the downpipe has been cut and a rubber sleeve put over it secured with clamps. Normally there would be just the black plastic downpipe going into the lower fitting. There may have been a split in the pipe or an alignment issue that caused someone to use the rubber sleeve.
That #2 photo is my picture , somehow it attached to the original post ? Not sure when the rubber hose was installed , that way when I bought the coach .
Chris
1986 #89
VIN 007
Detroit 8V92 TA 475 HP
Allison four speed
Chris and Sharon Hand