Kalkwasser dosing advice

[spedly]

@whatcaneyedo - thanks for posting that link. That gave me an idea.

My water mixing station is in a different room from my aquarium. Fresh RO/DI water is going into a 32 gallon Rubbermaid Brute container. I then use a 36' hose (5/8" clear vinyl tubing) to pump fresh RO/DI water to my ATO reservoir when it needs re-filling.

Could I just go buy a new Brute, transfer fresh RO/DI to it, mix the kalkwasser in the Brute, put a lid on it, and then then use the hose to pump it directly to the ATO reservoir? It would be easier to make one big batch as opposed to small weekly batches.