I remember back in 2008 it probably was when I first saw photos of this drain. I thought Stoop's Limit would definitely be my limit too if I ever ventured in there.
However, either it isn't as bad these days as it was back then or we were just lucky with not having all that water pouring in through the brickwork in that section.
Was still silty and gassy as we stirred up the sweetcorn from there to the interceptor but not as bad as I had prepared myself for.