Gary Holt

Wed 06 Jul 2016 08:52am

It sounds very much like the siphon.l which is the part of the system which when activated, allows the water to be released from the cistern into the toilet bowl. Depending on the age of the siphon, there are two options. One is to get the membrane replaced which sounds like it's torn or a new siphon.

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Dean Lehmann

Thu 30 Jun 2016 04:50pm

Hi ian, it would more likely be a torn syphon diaphram than an air lock. Unless it is not dilling sufficently before it flushes. :-)

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