Christina Websell wrote:
With chicken poo on the compost heap, added regularly nothing I add to
it, including Typhoo tea bags, refuses to rot down ;-)

A-ha, this could explain why our Clipper teabags aren't presenting a
problem despite apparently having the same issue. More chicken poo all
round is the order of the day!

Yep! Will swap chicken poo for courgettes ;-)

Or we could join forces and feed the chicken poo to the courgette plants and
get gazillions of courgettes!