
How to Fill Water Barriers: What You Need to Know Before Ordering a Non-Potable Water Delivery
Water-filled barriers are widely used to create temporary safety systems in environments where vehicle movements, machinery operations, and pedestrian access occur in close proximity. Construction sites, roadworks, outdoor events, and other high-traffic locations use these barriers to control movement, mark work zones, and separate operational areas.
These barriers are designed to be filled with water once positioned on site. Filling them correctly requires access to a suitable water supply and an understanding of the type of water used for this purpose.
This guide explains how to fill water barriers, outlines what non-potable water is, and describes how to arrange a non-potable water delivery for barriers.
How Do You Fill Water Barriers?
To fill water barriers, first position the barriers in their required layout across the site. These barriers are manufactured with integrated filling points that allow a tanker to connect directly to the unit.
Once the tanker has connected to the barrier inlet, water is transferred into the barrier until it reaches the required fill level. On construction sites, roadworks, and event locations, this process is typically completed using non-potable water delivered by tanker using 2-inch hoses and inlets. This provides a controlled supply capable of filling multiple barriers in a single operation, which is suited to sites without a direct water connection or where consistent volume is required.
After filling, the additional weight stabilises the barriers and helps them remain in position during normal operating conditions. When the barriers are no longer required, they can be drained through the outlet valve and removed from the site.
How Much Water Can Barriers Hold?
The volume of water a barrier can hold depends on the design and dimensions of the unit. Many standard traffic management barriers are manufactured to hold between 300 and 500 litres of water when filled to capacity.
Larger interlocking barriers used on roadworks or infrastructure projects may hold greater volumes. The exact capacity is usually specified by the manufacturer and marked on the barrier.
When multiple barriers are being installed, the total water requirement should be calculated before filling begins. Arranging a bulk water delivery with this requirement in mind provides a reliable water supply for the site, allowing all barriers to be filled during a single delivery without delays caused by insufficient water availability.
What Is Non-Potable Water?
Non-potable water is water that has not been treated to meet the standards set out in the Water Supply (Water Quality) Regulations 2016 and Drinking Water Inspectorate guidelines. As a result, it is not suitable for human consumption.
However, non-potable water remains suitable for a wide range of commercial and operational uses where drinking water quality is not required. This includes applications such as dust suppression on construction sites, cleaning plant machinery and equipment, and other site-based activities where large volumes of water are needed.
On many construction and infrastructure projects, non-potable water is delivered in bulk and transferred into on-site storage systems such as water tanks or water bowsers. These units allow water to be stored and used across different parts of the site for ongoing operational tasks, including dust suppression during groundworks, demolition, and vehicle movement.
Where bulk deliveries are used to fill water barriers, any remaining water can be redirected into bowsers or storage tanks rather than being left unused. This allows sites to retain a usable water supply for other activities, supporting efficient use of delivered volumes.
Using non-potable water for these purposes allows businesses to avoid using treated drinking water for non-consumption activities while still maintaining access to the volumes of water required for site operations. Potable water undergoes additional treatment to meet drinking standards, which makes it more expensive than non-potable water. For applications where drinking water quality is not required, using non-potable water will reduce operational costs while still providing a reliable water supply.
Bulk non-potable water deliveries provide a practical solution for locations where an on-site water supply is not available or cannot meet demand, allowing water tanks and water bowsers to be supplied as required.
How Universal Tankers Can Help With Bulk Water Delivery for Barriers
Universal Tankers provides water supply services for sites that require large volumes of water to support daily operations. Using a fleet of modern vehicles and high-capacity water tankers, Universal Tankers can deliver water directly to construction sites, infrastructure projects, event locations, and other operational environments across England and Scotland.
For water barrier installation, tankers connect directly to the barrier filling points and transfer water into each unit until the required level is reached. This provides a controlled and efficient filling process across multiple barriers, supporting consistent setup across the site without reliance on on-site water sources.
These water services are frequently used for servicing welfare facilities and welfare units on construction sites and temporary work locations. Water can be delivered to support welfare unit servicing, including supplying water for washing facilities, hand basins, and other hygiene provisions required for workforce welfare.
Universal Tankers also delivers water for portable toilets and other temporary sanitation systems where a constant supply of water is required to maintain site functionality. With a national network of depots and modern vehicles designed to access challenging environments, water tankers can deliver water to remote locations where fixed water connections are not available.
Each delivery is planned to provide an efficient process that supports site operations with minimal disruption. This allows businesses to maintain a consistent supply of water for barriers, welfare facilities, and other operational requirements while keeping projects running safely and on schedule.
Contact Universal Tankers Today
To arrange a delivery or discuss your water supply requirements, contact Universal Tankers to speak with the team by calling 0800 180 4474 in England and 01236 434422 in Scotland. Alternatively, fill out an online contact form and a member of the team will respond shortly.

