I've been trying, unsuccessfully, to find some plastic balls, around 85 mm for our first flush diverters.
Instead of paying a minimum of $25 for the first flushes, we made them ourselves using pvc downpipe, a threaded cap, a tap, and a couple of other bits and pieces, for a total of less than $7 each. We used ball pit balls and they worked fine for a year or so, but are a little the worse for wear, so we need something a bit sturdier.
The obvious thing would be to buy balls specifically made for first flushes, but have been unable to find any.
Have tried numerous toy stores and the local plumbing supplies stores, without much luck. Can anyone offer any suggestions as to where we might find some please?
have you tried going to one of those indoor play grounds and just pinch one from the pit?