In the summertime, it helps to use a lot of smaller tubs rather than one big one, that way they’re easier to dump and scrub. Mom uses the empty plastic tubs our mineral licks come in as water tubs—they’re the perfect size for sheep and goats. Bigger mineral tubs work for horses and cows. If you don’t have any, join your local Freecycle list and ask for unwanted tubs. Farmers are glad to give them to people who can use them.