Dual Flush top button system keeps running

Blowheads

Hi All,
We have a top button dual flush system, the cistern if fairly tall.
The issue is that if we just press the button and let it go again quickly the water will keep running into the toilet. However if we push the button and hold it down for a few seconds then it seems to work fine.
Is this supposed to the the case? had the plumber out, but he said to get a new cartridge, which i replaced, but made no difference.
Really annoying when you find it running after one of the kids flushed it, the bloody water bill will be astronomical..
Any ideas, can I buy a generic replacement system and replace the button on top with longer pins or its normal to have to hold the button down for a few seconds. is it just the brand of cartridge i got is useless or did i get two duds?
God be with the days of the standard handle flush

Any advice appreciated

TitianGerm

Blowheads wrote: »

Hi All,
We have a top button dual flush system, the cistern if fairly tall.
The issue is that if we just press the button and let it go again quickly the water will keep running into the toilet. However if we push the button and hold it down for a few seconds then it seems to work fine.
Is this supposed to the the case? had the plumber out, but he said to get a new cartridge, which i replaced, but made no difference.
Really annoying when you find it running after one of the kids flushed it, the bloody water bill will be astronomical..
Any ideas, can I buy a generic replacement system and replace the button on top with longer pins or its normal to have to hold the button down for a few seconds. is it just the brand of cartridge i got is useless or did i get two duds?
God be with the days of the standard handle flush

Any advice appreciated

I had the same problem with my toilet, the missus would flush before heading off to work and I'd arrive home at lunch to hear the toilet filling away.

When you lift the lid on the cistern do you see two plastic pieces coming from the bottom of the button ? On my toilet you could adjust these and i screwed them into the button a bit more. After that no more problems.

Blowheads

Thanks , I'll try that, but that doesn't really explain though that if I push and release the buttons quick it runs and if I hold it down a few seconds it works as expected

Blowheads

just an update, i couldn't really shorten the two plastic prongs, but i did take the little rubber feet off. seems to have made a difference because it hasn't ran since.. strange though

TitianGerm

Blowheads wrote: »

just an update, i couldn't really shorten the two plastic prongs, but i did take the little rubber feet off. seems to have made a difference because it hasn't ran since.. strange though

Same as mine so. The little prong was to long and was catching on the system and holding it down a little and causing the toilet to dribble.

Blowheads

just to close this one off, I removed the two little rubber feet, has done the job, thanks Emmet