Rubbermaid livestock water tanks. They aint cheap but you'll only have to buy one. I used one of the plastic storage containers and it disintegrated after a couple of years. (stored outside)

"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.