Ahh Great Stairway. One of my all time favourites.
Top tip if you don't want wet feet. Take the right hand pipe at the chandelier chamber and cross back into the left hand pipe via the cross pipe just after the guestbook (don't forget to sign your name).
As your next challenge find the fish room. (Idk why it's called that but you'll know it when you find it. Left hand wall. Enjoy the slippery round red brick on your way).
Sloth's, as Dougo's video probably shows, is less daunting than it seems. 5m or so of maximum knee deep water, then you're home free. Get the pipe splits right and do it all the way through to the inflow
The drain downstream from Sloth's is Dougo's. Nice drain for a Sunday stroll however the outflow is unavoidably wet if you decide to exit it. Somewhere around knee height from memory, perhaps a tad more.
And yes we'd very much like photos.
Wander often. Wonder always.