Sorry Lewis, did go off topic a bit. To bring it back on topic, I have about 350 litres capacity from rain butts. Just wondering if this would be enough to have a go at wfp, but without the expense of going RO, DI, etc straight away? I just want to trial it really, before deciding what to do.
Ian, I probably will go wfp in the future. Some of my round isn't suitable for wfp, but the majority probably is. I just wanted to give it a whirl really before splashing out on a pro set up.