On 01/02/2021 01:02, Rod Speed wrote:

The hard crystalline form of caustic soda is the blockage.

The OP gave the reason why he poured caustic soda and boiling water down
the pan as a blockage. What he didn't indicate if his NEW toilet had
been previously clear just that it had become blocked. He may now have
two problems, the original blockage and the partial blockage due his "cure".



However, most toilet blockages I have come across are down to foreign
materials and I suspect the OP's problem is no different.

You'd be wrong, as always.

Probably correct, the original problem may be down to anything from
flushing wet wipes. flushing the centre tube from the bog roll or just a
massive **** combined with half the worlds supply of fluffy bog paper.

Plunging the bowl will have removed all of these. One way of plunging is
to get a mop, cover the head of the mop in a plastic dustbin bag and
shove it in the bowl. Moving the mop up and down usually shifts
blockages near to the pan. On removing the mop remove the dustbin bag by
turning it inside out. This is probably not possible now with his
secondary blockage of caustic soda.

https://www.youtube.com/watch?v=Y_YeWXk80NI


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