Originally Posted by Jefvm
Yes it is. The discharge line is 1 inch inner diameter.
It converts from what looks to be the traditional 3 inch or 4 inch line prior to the macerator pump. on the discharge side of the macerator pump it reduces down to 1 inch discharge line.
Disclaimer: The info in my mind is about 2 years old and may have changed. I am not responsible for any lapse in memory as a result of increased age.
If I remember correctly Clean Dump uses a standard Flow Jet pump and then adapts it from 3/4 inch to 1 inch for the discharge hose. What never made sense to me, when I was looking at macerators for my class C is if the standard discharge is 3/4 inch it doesn't matter what size the discharge hose is the pump is limited to the 3/4 inch outlet port.
With that said, have you considered adapting the pump back down to 3/4 inch and using a standard 3/4 inch garden hose?