Johnson Pump AquaT Compact Manual Marine Toilet 80-47229-01 The fine finish and well thought-out design of these toilets is remarkable. Made from white vitreous porcelain, and with corrosion-resistant parts throughout, the Johnson Pump AquaT marine toilet is quiet, robust, and easy to clean. The AquaT toilet will give you years of trouble-free operation. The manual version incorporates an ergonomically designed, hand-powered piston pump that can be mounted for either left-hand or right-hand use.