Dumb question about water

[viperfish]

I picked up a rain barrell from Crappy Tire. It holds 80 Gallons and even has a drain valve on the bottom.

[Reefer Rob]

I got my poly tank reservoir at Twin Maples in Abbotsford.

Keep it food grade. There's enough that can go wrong with this hobby without having to worry about toxins leaching from plastic.