If you are a land-owner of any kind and have a problem with your surface drainage, it could be time to invest in a soakaway borehole to ensure that this issue doesn’t persist. You may not have heard of these simple systems before, but they are highly effective and are often the ideal solution for areas that experience heavy rainfall. The importance of a borehole soakaway is often understated, as they perform a vital role in draining your area of any excess water that can be reused elsewhere or can cause damage to the area around it.
To give you some more information on these amazing solutions to this problem, we here at Teckna Group thought we would answer some frequently asked questions about soakaway boreholes so you can understand a little more about this process.
What is a soakaway borehole?
A soakaway borehole, or a deep bore soakaway as it can also be called, is a construction found beneath the surface of the ground. This collects excessive water from the ground’s surface and effectively drains it so your ground is kept in ideal condition. Sounds good right? Once it is gathered in a seal storage chamber, the water is transported deep into the ground and subsequently filtered into the surrounding soil or permeable strata to make effective use of it.
Soakaway boreholes are most often used in locations that are not connected toa nearby water-body or man-made drainage system, or where the current drainage system is failing to cope.
What is the difference between a conventional soakaway and a soakaway borehole?
This is a question we get asked a lot here at Teckna Group, which has a fairly simple answer! The main difference between these two borehole soakaway options is the depth at which they work. A conventional soakaway sits very near the surface of the ground. It is constructed by digging a small hole, then inserting a perforated cylindrical chamber or filling it with rubble. This then effectively drains excess water into the surrounding surface soil.
By contrast, a deep bore soakaway is inserted much deeper into the ground. Excess water is first collected into a sealed storage chamber, then transported via a small tube to the permeable strata that lies beneath. This type of soakaway is commonly used when the surface soil is impermeable or non-porous and a traditional soakaway system would fail to drain the water away.
What are the benefits of using a soakaway borehole?
One of the main advantages of a borehole soakaway is that, by their very nature, they can successfully drain surface water when geological conditions are poor, or when a traditional drainage system is either impossible or too expensive to install. They are also a fantastic way of keeping the surface soil moist, acting as a source of water for your garden and encouraging plant growth.
How does a soakaway borehole work?
The installation process for a rainwater soakaway borehole is very similar to that of a water borehole. Initially, the geological properties of your site will need to be assessed and a soil percolation test will be conducted, ensuring your soil is suitable for water drainage.
Rotary air and mud drilling techniques are then used to dig a hole in the ground to the required depth. Suitable liners and gravel will be inserted into the hole, facilitating percolation into the surrounding soil. The overall system will then be secured in place with grout. Once the installation process is complete, a second percolation test will be conducted, and a siphon head fitted.
If you would like to find out more about soakaway boreholes and how they could be of benefit to you and your land, feel free to get in touch with one of the team. Here at Teckna Group, our team of experts demonstrate excellent knowledge in this area and have many years of experience in soakaway borehole drilling.