Covering the warwickshire area
At Warwickshire Groundworks we specialise in all aspects of drainage.
from broken and collapsed drains that may need a camera survey and replacing to complete new drainage systems on new build developments.
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A Drainage Field is a system of infiltration pipes placed in trenches and arranged so that effluent can be discharged to the ground. The field must be constructed in a certain way that allows for the effluent to be treated in the soil through aerobic digestion. This means it must be constructed in the top 700-800mm of the soil to ensure aerobic contact. The Field must be big enough to treat and disperse the maximum amount of discharge the system will discharge to it. This is calculated by a formula that we will examine below in this article. The two main variables needed to calculate this are first, Vp, a measure of soil porosity gained from a percolation test. Secondly, the population of the household or population rating of the tank present in the system. If a company comes to quote for a system, with a discharge to ground and do not require to undertake a percolation test then we would strongly advise you to discount their advice and quote. Without a percolation test, you cannot design a system that adheres to the Building Regulations or the General Binding Rules. Further, the system is unlikely to work properly.
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