stuart noble wrote:
The blockage is either
in the u bend. Shoving your hand down there with a short length of hose
should eliminate that. or outside in the vertical soil pipe.

Or very likely, lying in the length of slightly sloping pipe that
connects the two. A hose or a rotary plunger pushed around the U-bend
will come out along the top of that pipe, and may completely miss what's
lying underneath.

However, you may be able to block the end of the hose and drill a hole
in what will be the bottom side, to make some kind of jet that can reach
that area.

(It's so much easier to think creatively about a blocked toilet when
it's someone else's.)


--
Ian White
Abingdon, England