Saltwater mixing station

[Brissonya]

Good evening everyone,

I am looking at building myself a Saltwater mixing station to automate my water changes and was wondering if anyone knew where I could purchase water containers that would look something similar to the attached pic?

Since my tank is a 120Gal, I was looking for containers with capacity of at least 30 + Gal.

Thank you.

[Dxpert]

Not exactly what you are asking for, but I use Brute garbage cans from Home Depot. They work great I built a stand for it that makes water changes easy. I use a small power head in the one for mixing

[tanksalot360]

Used foodgrade barrels are available at Cohen&Cohen ~$20ea.
I dont know of a local manufacture of polycarbonate containers, but check agriculture supply. I recall 100g tall cylinder was ~125$ in SK.