This is a fantastic way of utilising more than one roof...
You can easily connect more than one RAINPOD to a serier of different downpipes around your property to one harvesting system.
You can access water from all around your property while the bulk of your water can be out of the way in a more convenient location.
Simply add an additional "T" connector and 3 x jubilee clips to your last water butt then connect to your next RAINPOD.
Simply maintain the correct levels and you can link as many downpipes or roofs as you desire to save some serious rainwater volumes.