The Even Flow is available online, there are many happy customers in Canada
, USA, UK and Australia
. The pressure sensor does not care what it is operating - it adjusts the motor speed to maintain constant pressure.
There is also a bluetooth App (Windows only) which allows monitoring of the internal parameters and adjust the settings. However default settings are Ok for 99% of installations.
DC motor control using PWM is standard procedure for variable motor control.
Like other Pulse width modulated DC motor control, it runs much better without an accumulator tank.
On the subject of accumulator tanks
. These are in common use in remote
home domestic water systems. However the larger the tank, the better the system operates. On boats there is insufficient space for a large enough tank to be effective.
Best to fit the controller, remove the accumulator tank and use the space for storage