Why Installed

  • You don’t have to pull the system out on deck every time you use it
  •  No hoses thrown over the side of your boat

While the system is in use

  • less concern of hoses getting kicked out of place while in use
  •  easier to use while underway

Types of Installations

The case and modular systems can be installed and plumbed in various configurations. Below are high-level schematics of four possibilities.


The core components of the installation are:

  • Dedicated or shared through the hull for intake of seawater
  • Ability to draw water out of a bucket for flushing or pickling the watermaker. Using our autoflush option means you will rarely, if ever, need the pickling bucket.
  • Control product water flow for testing or filling your tank
  • Brine wastewater goes overboard.

Easy Mount System

Often one of the challenges with a watermaker is the physical installation of the system. Rainman has developed a mounting system made of fiberglass-reinforced nylon to make this process as easy as possible.

The Rainman modular watermaker includes a plumbing kit that is designed to fulfill most of your requirements for your installation. Every boat is different, so there will be some parts you may need to source yourself. Some of these parts can include a sea strainer, an extra 3/4′ hose, and related fittings.

If you plan to fully install your cased Rainman system, the plumbing kit can be purchased separately as an option. 

Unsure of the right option for you?

Our Team is prepared to offer full support with your installation process - contact us to find out how we can best support you
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