I made a good start on shortening my sump today, yes its ali and full of all sorts of crappy inclusions so just like yours Ash its been a pig. I managed to reduce it by 35mm which should be sufficient (damn well better be
) using a reciprocating demolition saw with a coarse metal blade. i've taken a few photos as I've gone along but I'll wait to post them till its all sorted and I know it don't leak
.
D.