The WATSOL Sewer Comb provides a cost-effective, high efficiency, low maintenance solution to remove >6mm solids from sewage during overflow events. Using proven, unique, self-cleansing technology, captured materials are returned to the sewer for transport to the treatment plant once the overflow event recedes. Retrofitted into existing manhole structures, or supplied in precast/cast insitu chambers the technology is designed for each specific site constraints.
How does it work?
The WATSOL Sewer Comb is an innovative technology utilising stainless steel combs (1) to screen sewer solids from the overflowing weir nappe. An hydrostatically-actuated ball valve (2), isolates a solids holding chamber (3) as flows increase. The combs intercept and capture the solids in the holding chamber. The combed nappe then passes through a perforated screen to a filtered water chamber (4) before discharging to the receiving water. As flows recede, the quick-acting ball valve releases the captured sewer solids back to the sewer chamber (5).