Installation of the MIXER directly behind the exhaust manifold makes sure that the injected cooling water mixes properly with the hot exhaust gases. In some boats the exhaust waterlock must be positioned so closely behind the engine’s exhaust manifold (this is especially true in the case of near horizontal exhaust assemblies), that the injected cooling water does not always mix properly with the hot exhaust gases. This often results in the exhaust hose and/or the waterlock becoming overheated. Installation of a water mixer directly behind the exhaust manifold will prevent this problem. The water mixer is available for exhaust hoses with inside diameter of 90, 100, 125 or 150 mm.