The standard kit would be set up for one tank at the time, however a separate accessory can be purchased (GardenPump extension kit) to use the same battery unit but acquire an additional pump unit. Each pump unit can be permanently fixed in each rainwater tank, whilst the battery unit can be easily moved from the different tanks to function the pump. The accessory kit would come with the two fixing choices (wall or tank attachment) to offer the flexibility of moving the unit easily.