I have found the rubbber on top that is perished. There is also a lower rubber gromit that is above the ball that has perished. I can only find a waterways control but it only has 1 rubber in it that’s different to mine so do I need to change the whole unit. If not can you advise where I can find these parts as I search for weeks now and to no avale. I have attached picture of top rubber but the lower 1 has perished so I assume this is why water is being drawn up pipe.
many thanks
John