Didn't know that (not rich enough to use trains these days ).big-all said:modern trains have retension toilets
I do remember once using the khazi on a Belgian train - no s-trap, just a pipe straight down to the track - **** me was it draughty!
Re sleepers, I think they were once an interesting thing to use, when they were unusual and cheap, but have now had their day. Hard to work, bound up with safety concerns and no longer cheap, no longer different. Why bother?
Heard an interesting story years ago when I went on a trip round Battersea Powerstation, before it was vandalised. When it went out of use, various contracts were let for the demolition/removal/whatever of various bits. In the chimneys were huge baulks of teak (I think) which were there to make the water that was poured in at the top bounce around and get uniformly distributed to cool the smoke and wash out the ash. So this wood had been in a hot, wet, dirty, smokey environment for decades, and the contract to remove it went to the guy who charged them the least. They all thought the wood was useless, but this guy knew that once he'd machined off the outer layer, the stuff underneath would be perfect, and worth a fortune....