Borehole – An Expert’s Guide to Soakaways

by | Aug 24, 2020

During periods of heavy rainfall (which are extremely common within the UK), surface water develops on the ground of some properties, causing flooding. This is extremely frustrating – especially if it becomes a frequent issue that you have to deal with. If it does become a regular problem, then it could be time to invest in soakaways to manage the water level in your property.

As one of the country’s leading geotechnical drilling companies, the team here at Borehole Solutions have many years of experience installing soakaways. In today’s blog, we wanted to share our expertise of soakaways. Letting you have a clear understanding of what they are and how they work before installing a rainwater soakaway.

What are soakaways?


Deep bore soakaways are both cost effective and efficient in dealing with drainage problems. They act as an addition to your current drainage system, helping to collect rainwater and filter it back into the earth. They can also be installed in rural areas where no drainage is present. A drilling company like Borehole Solutions will dig a conventional chamber and narrow bore into the ground. These are usually 100mm to 150mm in diameter and constructed similarly to a conventional soakaway. However, the chamber is used for attenuation. This hole is then lined with a plastic soakaway liner and gravel. This will control the flow of water and percolate it into the ground. Due to the minimal materials required, soakaways are easy to install and require very little maintenance over their lifetime.

What do I need to know before installation?


When you’re deciding whether or not to install your rainwater soakaway, it’s important to understand what needs to happen before installation. Firstly, the geotechnical drilling company will carry out a soil percolation test. This test is designed to determine the absorption ability of the soil and whether the water will pass through the ground. Borehole Solutions will check the area for pipes and cables such as electricity, gas mains and drainage pipes. This will avoid any unforeseen damages or costs occurring. Finally, the area will be prepared for digging. This often involves removing large stones, tree roots and other debris.


What materials are used to build soakaways?

 A professional drilling company like Borehole Solutions will utilise high-quality materials for building a rainwater soakaway. The first material used is a deep bore plastic liner to support the soakaway. The liner is designed to help control the level of the water and discharge the surface water into the surrounding soil. Other essential materials for building soakaways is gravel. This gravel is used to backfill the perforated liner in the conventional chamber. These are used to reduce blockages and further disperse the water so it stays effective.

Here at Borehole Solutions, we are more than capable to assist in the installation of your soakaways. In the past twenty years, we have worked on a number of properties to create better drainage systems for them. We can also assist in fixing any issues that have been caused by previously installed soakaways. To find out more information about what we can offer then get in touch with our team today on 01733 200501 or info@boreholesolutions.com. Or why not visit our instagram page to see some of our latest drilling work?