Lab upgrades are coming along slowly. I decided to paint the boards I used to build the lab bench with enamel paint. This paint takes 10 days to cure, but hopefully the results should be nice and scratch proof.
It looks like the drill pump is threaded to fit with garden hoses. It seems that there were not enough standard thread sizes so they made up one just for garden hoses.
I am going to try printing the threads on the 3d printer, then maybe I can vacuum bag the hydrodynamic shell with integrated threads for waterproofing.