Sorry about the first post .Dont know what happened there ,it just went on
its way without any help from me .I have a toilet that is reluctant to flush
at times.It has multiflush siphon and overflows into the pan.Is there
anything I can check or do to see if I can improve things or is a new siphon
called for.Any advice welcome.
Virtually all modern, none syphonic flush valves have an internal overflow
(that overflows into the toilet bowl thus obviating the need for separate
overflow pipework. The simplest is the 'flapper' system which, as the name
suggests, is a simple circular flap over the outlet to the toilet bowl.
There is a hollow 'float' attached to the flap so that when you operate the
lever or push-button, the flap lifts and remains vertical because the hollow
float wants to rise. As the flush water empties the cistern, the flap drops
down and (for some reason!) remains down as the tank refills.
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