Dry-air solutions for


Waterworks play a crucial part in our freshwater infrastructure which is why we have to protect the integrity and productivity of this infrastructure from the harmful effects of unwanted humidity.  Explore how we can help reduce your risk and maximise your production output whilst adhering to stringent industry standards.

Humidity Issues in Waterworks

Protect production output and reduce risks

Some of the biggest practical difficulties for those who own and operate modern waterworks facilities are associated with humidity – and the many problems and costs that follow in its wake.

When warmer air containing water moisture comes into contact with cooler fittings and surfaces (such as cold pipework, metal structures and building surfaces), the laws of physics make it condense.

This water then drips, pools and accumulates on and around surfaces, structures, fittings and equipment, which provides an environment highly conducive to corrosion, along with favourable conditions for microbial and bacterial growths to develop and multiply.

Condensation and corrosion

Condensation and corrosion in and around structures, fittings and equipment

Microbial and bacterial growths

Excessive humidity creates favourable conditions for microbial and bacterial growth

Operating and maintenance costs

Excessive humidity is detrimental to equipment and electronics and causes disruption in production output and expensive maintenance costs

Non-compliant hygiene standards

Difficulties in achieving required hygiene standards and poor working conditions for staff

Waterworks humidity issues

What is your dry-air strategy?

The right way to dry your production facility depends on your business needs, objectives, and goals. 

Cotes adsorption dehumidifiers come in a range of sizes with varying functions and airflow capacity. Finding the right dry-air solution starts with a conversation. That is why we welcome you to an obligation-free conversation with one of the experts that can help guide you to the right dry-air strategy and the best dry-air solution for you.

Below are some of the humidity issues we see in the waterworks industry.

Let's make a dry-air strategy together

Underground pumping

In underground pumping, pumps play a central role. They have a sturdy design and are usually made of robust materials, as these dictate the reliability and durability of the pump. However, at times, even after taking all the precautionary measures, certain unexpected pump failures can still occur:

  • Corrosion within centrifugal pumps can affect wet surfaces or a small portion of their internal components
  • Higher service and maintenance costs as a result of uncontrolled humidity
  • Bacterial growths and mould that result in hygiene and compliance difficulties
Reservoir and Pump Station

Surface water treatment

Surface water treatment facilities are public drinking water systems that use water from streams, rivers, lakes, or reservoirs to treat the water before it reaches its final destination. Without a controlled-humidity environment, you’ll probably have to deal with:

  • Condensation and corrosion can damage pipes and structures around the facility
  • Moisture leads to challenges in hygiene and safety standards
  • Energy consumption, operating and maintenance costs that are unnecessarily high

Groundwater treatment

It is often a challenge in groundwater treatment to maintain the right relative humidity (RH) level, especially when considering condensation on the surface of the cold pipes and walls. This leads to:

  • Condensation forming and pooling on pipes, equipment and cold surfaces
  • Corrosion and other damage to buildings, structures, and equipment
  • Bacterial growths and mould that result in hygiene and compliance difficulties
  • Risk of contamination
  • Higher service and maintenance costs as a result of uncontrolled humidity

Water processing

A reliable supply of clean drinking water originates through water processing facilities, that when exposed to uncontrolled humidity, will face problems such as:

  • Condensation on pipes, tanks, building surfaces, fittings and equipment
  • Undesirable microbial and bacterial growths
  • Health and safety risks for personnel, due to pooling condensate
  • Service interruptions resulting from the need for unscheduled maintenance work
  • Difficulty maintaining hygiene standards

Waste water treatment

Modern waste water processing requires controlled humidity conditions and effective hygiene management. Without effective dehumidification, such facilities can expect issues that include:

  • Problems stemming from condensation and corrosion in and around control systems, structures, fittings and equipment
  • Unreliable and interrupted service to your customers
  • Unnecessarily high energy consumption, operating costs and maintenance costs
  • Difficulty achieving required hygiene standards
  • Health and safety concerns for staff

A range of dry-air solutions

Cotes have a range of adsorption dehumidifiers for the job. Depending on your dry-air needs, the Cotes team can help you find the right way to dry your waterworks.

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Every year Cotes gives over 70million litres of fresh drinking water to those that need it the most

In partnership with UNICEF

We give back the water we take

Cotes adsorption dehumidifiers remove hundreds of thousands of litres of unwanted moisture from the air every year from all kinds of industries around the world.

Since 2022, and with the help of UNICEF, Cotes has given over 140 million litres of fresh drinking water to those who need it most.