Uranium235

i have 1 manhole in my property, the next manhole is shared so the water board have to clear it, not blocked for maybe 10 years now

Sympathies. I own my own drain rods, out of necessity.

It was midnight before I got it cleared. Had no rods to use, just loads of caustic soda and boiling water (it was the kitchen drain).

There is a reason why I always bang on about "no food in the sink", a plea not always heard...lol.