Siamp Monaco fluid master slow to fill due to wrong diaphragm washer.

Just wanted some advice - is this as fast as it should go?
Made some adjustments after the inlet valve wasnt bringing in water after flushing.
Turned the screw below toilet and it now seems faster. Any plumbers advice appreciated!

[@britishteapower]

It was the wrong rubber bit inside. Wrong shape. Take it to a plumber shop and see what they say. Think part is called diaphragm washer or just diaphragm maybe?

[@kingrich742]

How did you fix this? I have the same problem, did you replace the existing rubber diaphragm by unscrewing the large nut at the top of the assembly??

[@FredsRandomFinds]

Currently have the same problem, cistern filling a lot slower than normal and a high pitched squealing noise.

[@daleallaton128]

have you got a vid of how quick the jet is now?

[@britishteapower]

I fixed this problem by changing the small rubber diaphragm to a siamp one. The water now comes in near the bottom of the inlet valve rather than spraying out as above.

[@iGame613]

How do you do that