Hi Norm,

When I first assembled a clip it slid loosely over the post but when assembled the float was a little tight to move
so I pushed a 2.8 mm drill through the metal pivot but you always have to bend the little tab at the back of the clip
to take the tension off the plastic float then the float worked as usual but it looks like you have tried everything with
these caps and they still stick or leak.

Cheers
Max.