wc

[Graemewoods]

the handle needs pulling about three times to get a full flush!

 

[kevplumb]

change the diaphram in the syphon and check the water level

 

[mvanjaarsveldt]

I have the same problem. How do you remove the diaphram. ?

 

[Softus]

If it's a two-part syphon, then you dismantle it.

If it isn't, then you remove the syphon.

If it's a close-coupled cistern, then you need to remove the cistern in order to remove the syphon.