fit a stop bead then move the down pipe over the joint.
that's a double entry soil stack with a few 1.5 inch boss straps going into it this job is for a builder I do work for now an d again I'll tell you now he will not get that moved no chance
were fitting a stop bead mate been agreed today filling with a brown polysulphide sealantfit a stop bead and tell the builder to mastic the joint as there is a very good chance that it will crack.