Do you get the rain barrels for free? We have one at the chicken pen and it saves me a lot of running around but it won't hold more than 200 liters. That said, rainbarrels are not suitable for water catchment because the amount is just too small. Unless you get the barrels for free. I paid $30 and that is a lot of money for little water. It is really only usefull for a garden shed or so.
As in the video - a cheap and practical way is to cut an old hose long enough to loop over two barrels and reach almost the bottom of both. I tend to leave the bottom free as sludge/leaves etc collect on the bottom and block the hoses.
Thanks guys, siphons ,did not know about this.Certainly seems the easiest and cheapest way of solving my problem. I was about to go with the taps but it would take me a bit more time to set up.
Angelika, Yes all my barrels were free,i now have about 8. All found.