Contrary to popular belief, lots of water is not what a water mill needs. With its two 18 foot undershot waterwheels, the mill needs just the right balance. Too little and there is not enough power to turn the wheels. Too much and the wheels get "bogged down" with the paddles trying to lift the water that cannot drain away fast enough. Keep an eye on the local levels by looking at the Environment Agency Warwick Water gauge. 1.4 metres of water at Warwick is about perfect for the mill. Over 2 metres and the mill will probably not be able to run.