Our UK garden is about 75x75m, which is a decent size, but not massive. About half to 3/4 of it is grass, which I hardly ever water, and haven’t this year even though we had a drought.

We have 5 IBCs, and several other randomly-sized water butts (~7000l total (1500gal UK, 1850gal US)), to keep our veggies and fruit bushes watered. We ran out this summer, and had to use about 500l of tap water until it rained again :(

Dry periods are likely to get worse in future, so I need to get more water storage. I also want to start using rain water to wash clothes (or at least fabrics we use for our pet rabbit houses), but I need a good filtering system first.

We have 2 IBCs stacked, and I was trying to use the top one to gravity-feed our downstairs toilet cistern for flushing and worked well, although it took 7 minutes for the cistern to fill, which isn’t great if you have to accommodate a lot of people. It is good enough for us though.

I could add a pump to speed up the process, but I’m trying not to add more cost and complications to the system unnecessarily.

I can fit 1 more IBC in somewhere - they don’t look pretty, but they are very practical. I normally transport them home on the top of my car on a roof-rack… and drive slowly! :)