Thees barrels with the removable tops would make good make you water storage or sump barrels:

Food Grade Barrels and Drums

55 Gallon Food Grade Barrel Clamp Top with Lids & Clamp Ring.
Only used once in the food supply industries. Totally clean inside as liners were used. Previously contained sauces. Fully sealed, removable tops for easy access to contents.
$20 per drum. 5 for $85.

55 Gallon Food Grade Barrel Sealed Tops with Screw in bungs.
Only used once in the food supply industries. Contained soy sauce.
$15 per drum. 5 for $65.


I use one of the :: 55 Gallon Food Grade Barrel Sealed Tops with Screw in bungs.
cut lengthwise 1/3 of the way down as a water plant propagation tank/pond while I'd digging my pond

The removable top one will make a great filter barrel.