Wellhouse, Well and Wellhead Gear Next West Wall of Bonners

The wellhouse, well, and wellhead gear are 18th-century structures located next to the west wall of Bonners. The wellhouse is a timber-framed shed that is dark weatherboarded, featuring a pitched red tile roof with the west gable end open. The well itself is over 200 feet deep and partly lined with brick. The wellhouse is a single-storey building with two bays, situated next to the rear wing of Bonners. The wellhead gear is still operational, featuring an iron crank on a square-section iron shaft at the east, with a large oak flywheel approximately 6 feet in diameter, which has four spokes on the same spindle set between oak uprights framed to the roof purlin. A 6-toothed iron cog drives a 48-toothed solid wooden wheel with hornbeam teeth, which is fixed to a 4-foot wide wooden winding drum. The rope that draws the bucket is guided over an 18-inch diameter narrow wooden pulley, which has four wooden arms to assist in directing the rope. Additionally, there is a smaller diameter wooden brake wheel to the west of the flywheel, equipped with a low brake bar pivoted to the oak uprights.