This is a pet water station based on the ubuquitous (at least in Europe) 5l plastic canisters. They have bumps on the top for stacking, which register in the dimples in the stand.
No need for gaskets, keeps the water in by vacuum.
This is a tried and tested design that has survived freezing temperatures as the canisters just flex.
Technical
Print the trough (maybe out of PETG so you can occasionally put it in the dishwasher), print the stand, screw the stand to some horizontal surface and think about providing some method to lock down the cansiter from the top so it cannot be pushed off (ask me how I know).
See photos for my setup.