On Dec 11, 11:32*am, The Natural Philosopher wrote:
Yup. Upstair bog filled to the brim..taking an hour to empty, filthy,
stinking..tried a bit of caustic overnight..no joy. Tried coat hangers,
no joy. Basin/bath coupled in to vertical stack below bog all fine..must
be U bend or where the pipe joins the stack..utterly inaccessible..all
inside the wall..

Hmm. Normally would stick hose up it but danger of exploding crap heap
on bathroom floor. Cant get to stack top from below. Bugger.

Well hose is a good rodding agent anyway, saw off bit of scrap hose (the
one SHE left in the frost with the tap turned on, that split to buggery)
and push it round u bend and wiggle. No joy. Should I siphon te ****
out? no way.

Well at least lets see where the hose is and the blockage by blowing
down hose..and being careful not to suck. Hmm. That's ODD. No bubbles.
so how come the air is getting out, but not the water?.

The hose penetrated the blockage and you were blowing past it?

Blow some more and suddenly its clear!

Either:

(1) you wiggled the hose whilst blowing and cleared the blockage? or
(2) The hose penetrating the blockage started a small flow which
started to clear the blockage. I find they often go with a sudden
woosh!

MBQ