Looks like I will have access to getting 2 water storage containers from a guy at work. Not sure the size since he had no clue (I'm thinking around 30g - 50g range).....but they could come in handy. He did tell me they were used to hold either soap or a soapy solution for a car wash.

My question is if I can clean it pretty darn good with bleach (with subsequent rinsing to clean the bleach later), will they be useable for RO storage?