Get a trash can from Lowe's the gallon size of what u will use a week pop 2 holes in the lid one for your ro
line and one for an airsone line. That's what one of my buddies did he added up how many gallons a week he needed (55) for pwc
's and added 5 for top offs and whatever else then added 5 so it wouldn't ever be totally full in case he forgot to shut it off and he got a 70 gallon brute type trashcan. But I would also reccomend in an auto shut off float he found out the hard way when he went away for a few days and forgot to turn his unit off lol.