The gas reception sump is positioned below a floor slab (incorporating an integrity shield in the form of membranes and barriers), which provides a passive gas exit route via a ventilation stack.

Designed to be incorporated within the granular fill, beneath the floor slab. The reception sump receives gas from underneath the building and promotes passive discharge via a vertical 110mm PVC ventilation stack.

The stack is terminated above the roof finish with a tile/slate external roof ventilator. Suitable for new build or existing properties, the reception sump may service upto 250 metre' floor area, positioned in the most central location to promote even/optimum evacuation.

The sump has integral inhalation apertures and inlet/outlet portholes to permit spur connection to adjoining sumps should the size or layout of the property dictate.

Sizes

Sump approximately 680 x 410 x 450mm plus prthole projections which permit connection to 110mm standard vent/stack pipe. Inhalation aperatures exit ratio exceeds 4 to 1 for optimum performance.