I have just bought a 'Rainsava' rain diverter http://www.raindrain.ltd.uk/index.html and will be fitting it to my Sankey Space Saver water butt. The Water Butt has some flat indents intended for incoming hose connection around 3 inches from the top lip.
However, if I fit the RainSava as directed http://www.raindrain.ltd.uk/How.html , the connection will need to be made about 2 inches lower where the wall of the water butt is ribbed making connection difficult.
I have sketched a couple of diagrams showing the method in the instructions (A) and my preferred method (B) http://tinyurl.com/2jrxmx
Am I correct to assume that fitting the RainSava a little higher than specified so that the connector is level with the 'flat indent' will cause an overflow? I would have thought that the water would level out where the connection is made and then not fill the butt any further with more rainfall (thus creating an automatic 'overflow' system)?
Thanks in advance for any advice,