The Natural Philosopher posted

Just use a plunger to empty the bog, then fill it up with brick acid,
and leave it for an hour or two agitating occasionally to ensure
dispersal of the calcium chloride.

Then flush, hold the ballcock up, and tip the rest of the acid stuff
into the cistern.

That will give a power flush next time you do it.


Is there not a risk that the acid will erode the siphon washer and cause
a leak?

--
Jack