Toilet flush problems

[MSP]

Hi,

We have been having issues with our toilet flush for some time. Lots of times it does not work in the first or even the second go and flushing the toilet releases a small amount of water. When we let it fill up again(second or third go) and then try and flush, it releases all the water and works properly. Sometimes it would work fine even in the first go! It’s really driving us nuts!
We even had the plumber over, who replaced the siphon but it has not solved the problem. Does anybody have any suggestions?
Thanks,
MS

 

[Harvest Fields]

Is the circled bit in my photo under water? By at least 10mm

 

[MSP]

Hi,
Thanks for your reply. Yes it is under water, I have not measured it but I think it is more than 10mm.
It used to work alright until last month when we started experiencing these problems. Now it only works alright in first go in only 2 out of 10 times.

Thanks,
MS

 

[ShaunCorbs]

Flush the toilet where on the siphon does it go down to

 

[Burger]

Split in syphon diaphragm? I know you said it was replaced but could have been damaged?

 

[MSP]

Flush the toilet where on the siphon does it go down to

I will have a closer look when I am back home this afternoon but from memory it only release 20 percent or so of water when it does not flush properly. But when it does work properly then it releases almost all of water.

 

[MSP]

Split in syphon diaphragm? I know you said it was replaced but could have been damaged?

The plumber had a look and confirmed its all ok. In fact the problem started happening before the syphon was replaced. Changing. Of syphon was done to fix the issue but it has not made any difference.

 

[Burger]

The plumber had a look and confirmed its all ok. In fact the problem started happening before the syphon was replaced. Changing. Of syphon was done to fix the issue but it has not made any difference.

Was it a like for like syphon?

 

[MSP]

Was it a like for like syphon?

No different one. Would that make any difference?

 

[Burger]

No different one. Would that make any difference?

Only for the fact it existed before, kind of rules out the syphon imo. Is is close coupled or flush pipe? There could be a blockage/restriction on it somewhere.

 

[Riley]

Diaphragm all day

 

[Harvest Fields]

Diaphragm all day

No way that should have gone yet. Looks about 6 weeks old at the most.

 

[MSP]

No way that should have gone yet. Looks about 6 weeks old at the most.

It’s about a week old.

 

[Harvest Fields]

Make sure it is set up for the correct Litres

http://www.thomasdudley.co.uk/images/pdf_instructions/Dudley Turbo 88 Instructions.pdf

 

[WC1]

Has this one got a torn diaphragm like the last one. Never had one torn from new myself but not impossible. Relatively easy to look at.

 

[Riley]

I still say diaphragm I’d handle and mechanism is moving freely

 

[Ben-gee]

When you try to flush and it won’t, is it possible there is no water in the cistern? The reason I ask is that the float looks wound up unusually high as if the inlet valve is in need of a new diaphragm.

Other than that I agree with Riley, it absolutely sounds like a torn/damaged syphon diaphragm , or possible the seam of the syphon flexing apart as the handle is operated (or on those turbo 88 an oring missing from the downleg)

 

[Dan9866]

Is the siphon being pulled up straight (not on an angle) because that can affect the siphon working correctly