Quote Originally Posted by curious aardvark View Post
what's your evidence for that ?
Commercial parts in cisterns also age - why should 3d printed parts 'age' any quicker ?

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Hi

Most parts that go into plumbing are made from PVC rather than ABS. The parts I printed from ABS that a few years back ... not so nice anymore. Nylon and moisture, same issue on a *lot* of parts. Gears, screws, all sorts of stuff change size over the years. The reason is moisture.

Bob