In consulation with the officer or engineer in charge boroscope inspections are performed at different locations in the vacuum line. After examining the video recordings an approach is planned. There is a choice to either just descale the main pipe of the vacuum system or also clean the secondary pipes from the toilets to the main pipe.

Depending on the level of scaling and the customer's wishes, GreenBioClean Digital Dual Dosing Units are installed at different locations in the vacuumsystem.

Innovative design of theGreenBioClean Digital Dual Dosing Unit includes two solenoid valves, digital timer units with LCD screens offering true digital time cycle programming, suction pipe, tank connector and transparant supply hose. The timers can be programmed to open the solenoid valves at give intervals for a pre-determined duration, ensuring accurate and controlled dosing routines to be maintained. When the solenoid valve is open, the pressure differential in the vacuum pipe will allow the GreenBioClean Scale Remover Liquid to be drawn into the vacuum system.
The extra air administering solenoid valve allows for air to be dosed into the system. The periodic air flush simulates a toilet flush, without water that moves the GreenBioClean Scale Remover Liquid and distributes it over the inside surface of the vacuum pipes.


TheGreenBioClean Digital Dual Dosing Unit was developed after extensive trials, together with our UK distributor, MRH Marine Ltd, and has already succesfully cleaned the pipework on two Royal Navy ships where the pipe bore was down as little as 10mm in some places

We advise any type of GreenBioClean Dosing Unit or ECO Dosing Pump at the end of every vacuum line inorder to keep all lines free from urinary scale.

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