water - nutrient resevoir questions

Hello all quick question. I have an ro / deionizer system and it puts out at best 100 gallons a day. Now my question is what will I need to keep the water. I'm thinking about turning one of those big 50 gallon trash cans with the lid and wheels into my future reservoir. What do I need to be able to sustain this? Ill only have water in it when I need to water so at the most the water will be in there 48 hours and that's at the very most.

So air stones air pump? And how much? I'm tired of buying bottled water lol gets expensive.

why do you need a 50 gallon reservoir?

bigger is better. i run 3 50gal and 1 40gal res.

Wouldn't use it if i didn't need it. Ans yeah what's your setup for them superstoner? Help would be greatly appreciated.

check my post, my three stages of flower. i will be starting a journal soon, after new veg room is done.