swimming pool backwash discharge

swimming pool backwash discharge

Practically all modern swimming pools in the UK operate with a system of pumps and filters (sand). With the pool water circulating though the sand, deposits (such as hair, oil or dead skin etc) can build up. The water flows in through the top of the filter housing and makes its way down through the sand bed where the sharp edges of the sand catch the many of the particulates prior to recirculation. Many filters will remove particles as small as 20 to 25 micrometres, reducing the extent of visible suspended solids.   How does pollutant...

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Water Sensitive Urban Design

Water Sensitive Urban Design

Water Sensitive Urban Design (WSUD) is a term used to describe an engineering led approach to planning and designing towns and cities using an integrated and sustainable approaches to water management. It looks at the water cycle as a whole and how urban environments can best be developed to bring about healthy ecosystems by integrating the whole water cycle. Water Sensitive Urban Design is a land planning and engineering design approach which integrates: surfacewater groundwater wastewater or sewerage and clean water...

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Build over agreements and building over sewers

Build over agreements and building over sewers

If you wish to build over a sewer, you need a build over agreement. This is needed if you are planning to construct a building, an extension, underpinning or undertaking similar construction work near to, or directly over an existing sewer. The distance away from the sewer applicable depends on several factors, including the depth of the sewer, how critical the sewer is etc, although it is typically 3m. As sewers are frequently located running along the front and back of a houses, they are usually needed for...

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Section 101a or First Time Sewerage

Section 101a or First Time Sewerage

Section 101a is a mechanism for the public to obtain a public sewerage system. The informal name used by Engineers in the UK for such applications is first time sewerage. Therefore this is settlements which are requesting public sewerage, as they do not current have any public provision. Many rural developments have drainage which evolved over hundreds of years. Most systems are based on septic tanks, or mini package treatment works discharging to groundwater. Ground permeability can vary considerably even within the same village. The...

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Water Industry Act 1991 – Obtaining a public sewer

Water Industry Act 1991 – Obtaining a public sewer

There are a number of ways of obtaining public sewerage in the UK. The methods are set out in the Water Industry Act 1991. The processes can be complex and confusing. We are here to help guide you through the options and potential benefits so you can make the most appropriate decision. The sewerage company or undertaker has the following responsibility set out in Section 94: It shall be the duty of every sewerage undertaker— (a)to provide, improve and extend such a system of public sewers (whether inside its area or elsewhere) and so to...

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Pumping stations,septic tanks and treatment works

Pumping stations,septic tanks and treatment works

We are happy to provide independent professional advice on any of the following: Public / Adoptable pumping stations Private pumping stations Septic tanks and cesspools Treatment works Field treatment drain or other natural reed bed systems Our Director Stephen Gibson is a former Lead Design Engineer for the UK's largest water company – Thames Water Engineering. My experience with Thames Water should be invaluable in providing good professional advice in relation to sites with existing sewerage problems or where new sewerage...

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