I am trying to identify a problem with a pneumatic flush mechanism that doesn't always shut the flow off properly after flushing When this happens the inflow is not fast enough to fill the cistern so it is not possible to flush again without having a fiddle with it to persuade it to close enough to fill. Then it works for a few days before doing it again.
I have increased input flow and it has improved the chance of a fill but since the cistern is under a worktop I can't see what's inside and I can't get my hand to the bottom of the cistern. Cearly the thing is not broken but just gets stuck somehow. What is the likely cause of the problem?
I get the impression this type of flush is fundamentally unreliable and seem unsuited for hiding away in cabinets. I have had permission to destroy the woodwork and fit a proper old fashioned flush but would prefer to explore further before going that far.
I have increased input flow and it has improved the chance of a fill but since the cistern is under a worktop I can't see what's inside and I can't get my hand to the bottom of the cistern. Cearly the thing is not broken but just gets stuck somehow. What is the likely cause of the problem?
I get the impression this type of flush is fundamentally unreliable and seem unsuited for hiding away in cabinets. I have had permission to destroy the woodwork and fit a proper old fashioned flush but would prefer to explore further before going that far.