Pumping stations

Sewer or land drainage pumping stations are used worldwide. If the use of gravity flow isn’t possible in a sewer system due to the topography, a pumping station is commonly used. Sewer pumping stations consist of a wet well and a pump. When the waste water flowing into the wet well reaches a pre-determined level, the pump turns on and pumps the sewerage into the sewer main. If however the pump should stop working and the pumping station becomes inundated with wastewater, an emergency overflow pipe allows for wastewater to be released into a nearby ditch or river, or into the pumping station’s dry well section. If the water level in the river or ditch is high there is a risk of backflow through the overflow pipe, causing the pumps and pumping station to be flooded. Flooding of the pumping station with river water can lead to overloading and damage to the pumps. Backflow into the pumping station can also result in more water than necessary being fed into the sewer main and treatment plant causing excessive amounts of water to be treated. This increases costs in the treatment plant. WaStop is odour tight and therefore stops the release of sewer odours through the overflow pipe improving the surrounding environment.

Prevent backflow in land drainage pumping stations

There are a number of ways that Wapro products can be used in conjunction with pumping stations. WaStop will prevent backflow into the pumping station. WaStop is used in land drainage systems to ensure that backflow does not occur. If backflow occurs it can cause damage to the pumps as they are forced into reverse action, and can result in flooding of the lower land area. By using a WaStop to prevent backflow in land drainage pumping stations the backflow can be completely stopped whilst still allowing a high flow rate through the valves due to their low headloss.

Wapro’s WaReg flow regulator

WaReg flow regulator can be used to regulate the flow of water to a land drainage pumping station, ensuring the station is not overloaded. By evening out the peak flows with the use of WaReg, upstream overloading can be reduced and the land drainage pumping station’s capacity can be maximised.

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