Frequently Asked Questions

Find answers to common queries about Legionella control and other water safety solutions from the experts at Aquatrust.


At Aquatrust, we’re experts on water safety and are always here to answer any questions you may have. On this page, we’re answering some of the most common queries about our services, including Legionella control, Closed System Analysis, and TMV and RPZ valves.

Explore the categories below to see if we’ve answered your question. If you have any additional questions or require further expert guidance, please don’t hesitate to reach out to our friendly team of experts.

Legionnaires’ Disease FAQs

Legionella is the bacterium that causes the serious respiratory illness known as Legionnaires' disease. It is naturally found in water but can multiply and become dangerous in water systems. It grows best in warm water, making hot water systems the most vulnerable to infection. Proper maintenance of water systems is crucial for preventing the bacteria’s growth.

Legionella Testing and Control FAQS

How often you should get your water tested for Legionella depends on several factors, including the type of water system and your specific circumstances. If you reach out to our friendly team, we can advise you on the best course of action and come up with a plan that works for you.

Closed System Analysis FAQs

Closed system analysis is a preventative measure you can take to protect your closed heating and cooling systems. It involves an expert analysing your closed systems to ensure they’re running to the required standards. After this, actions can be put into place to ensure your system is operating as well as possible.

Water Cooling FAQs

A mains-fed water cooler is a convenient and sustainable solution for those who want chilled and filtered drinking water in various settings. It eliminated the need for bottled water by connecting directly to a building’s main water supply.

TMV’s / RPZ’s FAQs

Thermostatic Mixer Vales, or TMVs, offer scald protection by allowing hot and cold water to be blended rather than running the hot water system at a reduced temperature. While providing water at a safer temperature, the mixed water downstream of a TMV does provide an environment in which the Legionella bacteria can potentially thrive, so this is something that should be taken into consideration.

Get in touch with our team to find out what water treatment services are required to keep your business compliant.