Sailing things right

My choking toad won again.
Instead of buying a new bilge pump in a marine shop for €300 I've bought it directly from China for €40.
Seems absolutely identical. Sure thing, that I'll disassemble it completely prior to installation and make sure it's waterproof as hell.
Reviews for the Chinese shop are very promising. Especially the one saying that this pump survived 18 hours nonstop working at a real emergency case.