Right angle connector for 40mm corrugated hose?

Simply replaced all of the underfloor corrugated pipe, with rigis domestic pipework. The pipe, fittings and etc, are cheaply available, flow will be better and less chance of blockages.

Isn't that somewhat impossible with corrugated pipe unless a near vertical run?

What about smooth bore radiator hose for a car? Would something like the following work for you?

There are flexible adaptor ‘things’ about 300mm long designed to go between different sizes of waste pipe. Some DIY places stock them as do some motorhome / caravan places.

Our current MH has a 40mm waste outlet but I already had a long 28mm waste pipe to use on full service pitches ( which we normally use). I made an adaptor from a pill bottle - I think some headache pills I bought in the US and the bottle had been put in the ‘might be useful pile’. It was a near perfect fit.

The reduction in diameter doesn’t cause a problem - at worst when we do fill the waste tank and need to drain it at dump point it tanks a bit longer but draining the excess fresh water ( I generally only travel with

If you avoid food waste etc going into the tank as much as possible and pop in some disinfectant now and the, smells etc shouldn’t be an issue.

On the last day of each trip, when we are heading home, we run a few litres of hot water plus some disinfectant into the waste tank. On the drive home, it washes around, and I drain it when I get home. We may use the sink etc to wash our hands etc on route but that is fine.

I keep meaning to add a second waste drain - having one each side makes things more convenient when on service pitches if, like us, you have a MH with a ‘continental’ hab door.