FILTERS / ODOUR

GMS Store stocks a range of activated carbon filters that, when correctly installed in the vent line from a sewage holding tank, remove malodorous gases, and make life aboard considerably more pleasant.

GMS manufactures its own range of economic carbon odour filters, and also stocks the Sealand ECO vent filter that is fitted to many Sealand toilet installations. GMS’s range, and Sealand’s filter, are suitable for use on most sewage tank installations, depending on tank volume, vent-line diameter and through-put. 

GMS’s range includes a filter with a relatively large volume of activated carbon, which ensures the capacity to scrub larger volumes of fetid fumes at any instant, and longer life. GMS’ filters perform best when installed between vertical and 30 degrees off horizontal, to ensure the venting gases must pass through the carbon granules before being discharged. The Sealand filter has a concave shape to ensure the same process occurs, and it can be installed horizontally. The Sealand filter includes hose adapters for common vent hose sizes. GMS’s filters have a male BSP thread at each end, ready to accept a pipe fitting or hose tail. 

GMS Store stocks an extensive range of hose tails and plumbing fittings that can be used to make a connection.

If you have fitted a carbon vent filter, and your boat continues to suffer from a persistent odour in and around the toilet area, the fault may lie with the hose used to plumb the system. Sewage permeates through the walls of cheaper PVC hose over time, and no amount of activated carbon, deodoriser or disinfectant will fix the problem. The hose should be replaced by a better quality PVC sanitation hose, or the ultimate in sanitation hose, a rubber hose with a nitrile lining.

GMS Store stocks both types of sanitation hose, and hose clamps to suit.