Hi @magnusmyklebost,
Sorry to hear you’ve had leaking penetrator issues.
It’s a known problem, and is discussed at length here.
Reliability issues with potted penetrators (especially once we started potting them at scale) was a big part of why we put a heap of development effort into our new epoxy-less WetLink range. You’ll find that most of our products no longer use potted penetrators, and those that still do are on the way to having them replaced with WetLinks.
I’d recommend you contact support@bluerobotics.com to discuss further, with respect to a potential replacement or refund. It would be helpful if you could link to this post, and also include an order number/date if you can 