With the Marinevac System, your vacuum toilets remain in working order whilst the system is being cleaned

Vacuum Toilet Pipe Descaling System


With time, the pipework of a marine sewage system becomes progressively lined with a build-up of calcium, magnesium hard water scale and struvite deposits. The subsequent reduction in the cross sectional area of the pipe leads to reduced flow rates and eventual blockages in the system.


Yacht waste pipe blockages are always difficult to locate and even more difficult to access and remedy, usually involving disruption of surrounding furniture and carpentry work and certainly downtime in the sewage system itself; a major inconvenience to guests and crew alike.


With the Marinevac System, all your vacuum toilets remain in working order whilst the system is being cleaned.


The effectiveness and safe action of the Marinevac cleaning method is due to:


Spiral Action
Previous experience has proved that the slug of sewage moves down the vacuum pipe work in a spiral action. Consequently, the chemical will move in the same manner, thereby ensuring that the complete wall of the pipework will eventually be coated with the chemical.


Little and Often
With the inherent spiral action Marinevac only requires a small amount of chemical on a “Little and Often” basis, which would not be considered detrimental to the sewage treatment plant biological process, toilet mechanisms or pipe work.


Concentration
The quantity and strength of chemical injected into the system in a normal cleaning cycle can be considered minimal and is usually discharged into the vacuum collection plant before disposal either directly overboard or to an STP. The solution eventually becomes diluted within the pipe work and tank contents.

Blocked black water lines on yachts


Yacht waste pipe blockages are always difficult to locate and even more difficult to access and remedy, usually involving disruption of surrounding furniture and carpentry work and certainly downtime in the sewage system itself; major inconvenience to guests and crew alike.

An annual yacht sewage cleaning service is the only way of avoiding this problem. And unfortunately, current cleaning solutions are inconvenient and, as many yacht’s engineers will testify, may cause more problems than those their purpose is to avoid!

The Marinevac system


The key benefits of our black water cleaning system are:

  1. Clean unobtrusive equipment with easy set up
  2. Safe with a reduced risk of leaks or spillages due to pipe work being under vacuum
  3. None detrimental to biological process of STP
  4. Waste water pipework does not need to be dismantled
  5. The cleaning technique can be performed without any effect or disruption to the vessel’s normal operation.
  6. No flushing hoses around the ship’s interior
  7. The Marinevac system is the preferred method of descaling vacuum system pipework on many Superyachts, large Cruise Ships, Oil Rigs the British Navy & Royal Australian Navy.

Before and after gallery


Vacuum de-scaling FAQ’s from the service bar

No, You would not notice any difference. The system will be running as normal and there are no hoses or pumps anywhere. All toilets would be functioning as normal during the cleaning process.

No, as long as the system / pipe work remains under vacuum.

Yes, the system has been used on some of the largest yachts and Liners in the world.

It is recommended to be cleaned annually as part of a vessels preventative breakdown maintenance.

Yes, Loro and Blucher pipe work is designed specifically to work under vacuum and should not be cleaned under pressure as this may cause damage to jointing seals.

This is dependant on the following factors:

  • Number of lines to be cleaned
  • Length of pipe line to collection tank
  • Level of calcinate build up

No, We spiral a small amount of chemical every 30 minutes which coats the scale and dissolves it to a powder form, unlike other methods that fill the pipe work with chemical allowing it to break off into large pieces.

Contact us to discuss your requirements

For more information, please contact our expert team on info@marinevac.com telephone +34 971 673 005 or fill in the form below


Our Clients

M/Y Savannah
M/Y Savannah
M/Y Eminence
M/Y Eminence
M/Y Panthera
M/Y Panthera
M/Y Cyan
M/Y Cyan
M/Y Dilbar
M/Y Dilbar
M/Y Bella Vita
M/Y Bella Vita

Marinevac works globally with the world’s largest super yachts, with our head office in Palma de Mallorca, our services are offered in Spain, France, Italy, Croatia, Montenegro, Florida, Malta, Sint Maarten, South East Asia and Australia.

MarineVac. A truly global marine service provider
Our Global Locations

What our clients say

I wanted to write and thank you for the excellent service you provided us during our shipyard yard period in Barcelona. We have had a trouble free vacuum toilet system since you descaled the system a few months ago and have completed this season without incident. I appreciate how conscious you were about not interrupting normal operations and the care you took in protecting the interior spaces. Thank you again and see you at the next descaling.

M/Y Phoenix II Read more testimonials