I have a Bailey Senator 2006 and the plastic tap top has split inside where it screws onto the shaft.
Anyone know if you can buy these as a complete new tap is so expensive????
The original Bailey tap might be a good price, but you can replace with a semi-decent domestic tap as the water system is pressurised on your van (ie., no micro-switches to worry about).
I fitted one of these to my in-laws van last year - click here.