I have used a Varistream digital controller but it has been given me no end of trouble. Found out when I took it apart that one of the circuits had burnt out. Contacted the company but they said that due to it being a wiring fault I will not be able to claim for a new one even though it was only purchased in Feb 2013. I followed the wiring diagram and made sure I did the wiring correctly. So now I need a controller as I am going through my water too quick and was thinking of going down the route of an analogue one. I like the Gardiner products and was thinking of this one... http://www.gardinerpolesystems.co.uk/acatalog/Easy-Analogue-Liquid-Logic----trade-----Pump-Flow-Controller--LIQUIDLOGIC_ANALOG.html Is there anything similar on the market that will be trouble free?