Replacement for siamp optima 49 flush valve

[Munaf Altameemi]

Hi all,

My toilet is leaking water into the pan and it seems to be the flush valve (siamp optima 49). I untwisted the flush valve out of its base and gave it good clean but still leaking -seal might need replacing. I managed to find the same flush valve online but I was wondering if there is any other compatible flush valves to replace this siamp optima 49 and twist into its base without having to disconnect the cistern from pan.

Thanks in advance

 

[CBW]

Probably only other Siamp valves. Fit your new one, or replace with a different valve but will need to remove the cistern.

 

[Munaf Altameemi]

Thanks Chris

 

[MJN]

I'd suggest replacing the diaphragm - easy to do and no need for any dismantling (beyond what you've already done).

https://www.fixthebog.uk/siamp-optima-49-50-flush-valve-seal-diaphragm-syphon-washer/?

Before that though I'd try cleaning the existing diaphragm once more (and the surface it mates to) as it might still be salvageable.

 

[Munaf Altameemi]

Thanks MJN.

I have cleaned the diaphragm and its surroundings and then applied Vaseline as someone else suggested online but still leaking. Ordered a new one and if it doesn’t fix the leak I will replace the whole valve.

cheers

 

[Munaf Altameemi]

Another question, are the Siamp 49 and 50 interchangeable?

Ta