@josephdupont The upside down umbrella was original inspiration and we tried it. But there were too many moving parts for mass production and it would also have to made out of expensive wood to avoid rust. Another issue was we needed a standard fitting on it so that you could put it into whatever tank or barrel the user might have. The standard fitting also enables more than one collector per barrel.
@Sylvia441 We work with any water storage. See our Photo gallery at our website. We've installed into Barrels, Tanks, Buckets, Totes, Trash Cans. You just need a 2" bulkhead fitting available at most irrigation supply stores. Some of our retailers also sell them.