Hi all I have a problem with my toilet and was hoping somebody could help. My toilet was not flushing at all so I had a look at the syphon and the diaphragm film appeared to be damaged so I replaced the entire syphon unit. Now after the replacement, the toilet does flush but requires you to quickly pull the lever 3-4 times before it flushes. Im not sure if the syphon is the issue as it was replaced when it was not flushing at all before. Im now starting to think this is to do with the water level being too low, though it fills up past the fill line. Anyone know what the issue here could be?
Toilet flushes on 3rd attempt
- Thread starter j007
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Can you show pics of inside cistern ,
It's either the syphon or too low water level.
When was the complete new one fitted ?
It's either the syphon or too low water level.
When was the complete new one fitted ?
The syphon was changed yesterday. As I mentioned, prior to changing this, the toilet would not flush at all as the original valve was damaged.
I will upload a photo when I get the chance. This is the new syphon:
https://www.screwfix.com/p/flomasta...VAbDtCh1OWAllEAQYAyABEgJd8PD_BwE&gclsrc=aw.ds
The only other thing in the toilet is a float style fill valve that has a ball at the end. The fill line takes the water above the part of the syphon where the metal hook clip is attached but below the tallest part of the syphon unit. There is capacity to raise the water level to close to the top of the syphon (where the blue cap is from the one shown in the link above). It may go even higher but not sure if there would be room for the ball to float once the lid goes back on.
I will upload a photo when I get the chance. This is the new syphon:
https://www.screwfix.com/p/flomasta...VAbDtCh1OWAllEAQYAyABEgJd8PD_BwE&gclsrc=aw.ds
The only other thing in the toilet is a float style fill valve that has a ball at the end. The fill line takes the water above the part of the syphon where the metal hook clip is attached but below the tallest part of the syphon unit. There is capacity to raise the water level to close to the top of the syphon (where the blue cap is from the one shown in the link above). It may go even higher but not sure if there would be room for the ball to float once the lid goes back on.
Maybe the wrong syphon fitted, designed for a higher water level? Is there a water level marked on the syphon?
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Adjust the float to raise the water level to just below the overflow level. It's unlikely that the new Syphon is faulty ,but possible I suppose .
They would likely say that, to get a sale. Usually the instruction leaflet with the valve will suggest what water level it is designed to work with. Could you maybe push the ball down, to get more water in, to see if it then flushes properly?
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The new flush valve has the built in overflow so press the ball down until you see water trickling into the pan then release it.
Now wait until no water trickles into the pan.
Now flush the toilet - Does it behave as expected?
Now wait until no water trickles into the pan.
Now flush the toilet - Does it behave as expected?
I topped up the water manually by just pouring a few cups of water from the sink nearby. This seems to work as it flushes first time. The problem with adjusting the float valve to the working water level is that the ball goes over the top of the cistern so when I put the lid back on, the ball gets lowered so it won’t fill to the desired level. Does this mean I need to change the syphon for something more appropriate or get a compact fill valve that won’t stick out at the top?
Yes, or yes.
If it's a long arm with a large ball on the end, you can get much more compact fill valves - which sit in the corner, close to to the valve and don't need any headroom.
Do you have any images or links? I was looking at the following one but it seems like the float part is quite big and wouldnt go right to the top:
https://www.toolstation.com/viva-skylo-side-entry-flll-valve/p36103
That link is a style I had in mind. The extra cups of water you mentioned earlier - does that take the level above the 'max' line in the cistern?
Yes it does. What wont help me is that my inlet is on the same side as the handle so that type of float valve probaby wont fit as it will hit the syphon
Then your only choice is to swap it for the correct syphon.
My old syphon was a Dudley S9B one which I cant seem to find anywhere local, only online. Would something like this be better for me then? https://www.screwfix.com/p/fluidmas...VWYjVCh09jADOEAkYASABEgJfifD_BwE&gclsrc=aw.ds
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