Toilet fill valve hissing. A new one!

[Gossamer]

Replaced a hissing toilet fill valve and the new one hisses…..
Any ideas?
Ta.

 

[conny]

If water is flowing continuously then it sounds as though the valve is not closing properly.
Maybe a bit of dirt/grit has got into it or it's not fitted securely.

 

[Gossamer]

Maybe some debris then. It started an hour after I fit it.
Flushed 10 times now so hopefully cleared. Annoying.

 

[CBW]

Which one did you fit?

 

[Gossamer]

Viva bottom entry.

 

[Alec_t]

Is the flush valve closing properly? If not, the inlet valve will try to make up for the water loss.

 

[CBW]

Just make sure you fitted the top cap properly after flushing out the debris as per the installation instructions