i have one of those metal sheds that argos do, paid about £140 for it, the 1000 ltr ibc tank fits in snuggly, run my outside tap to the ro system inside, hose is lagged with thick lagging, have a submersible pump in the ibc tank and a hose so i can run the water up to the 250 ltr van tank,
you wouldnt know i have a water filter system in my garden,
your tank needs to be covered or the sun will turn it green, trust me my 25 ltr containers i filled turned within 2 weeks, had to clean them out.
sorry i dont know how to upload pictures on this site.
haydn