HP MWT BASIC is the brand new marina water treatment system using reverse osmosis membranes, that bring TDS and total hardness to very low levels, protecting all systems that use fresh water from limescale, and allowing a no-spots effects on all the surfaces. MWT Basic systems are designed to supply fresh water avoiding the use of pumps and electricity. The system is portable or can be installed on board. The floating switch installed in the fresh water tanks permits to the AUTO VERSION to automatic fill the tank without operating on any valve.