Market leaders collaborate to deliver first class solutions

A water tank in a reservoir complex based in Oxfordshire, which supplies up to 90MI of water per day to 150,000 customers, required maintenance. The water storage tank, a key component of a municipality’s water distribution system, needs to be maintained, enabling it to meet the superior standards required. Any maintenance work that needs to be completed has to be carried out quickly and efficiently to minimise the impact on the customers that it serves.

Problem

Under pressure to get the required maintenance work completed quickly, the contractor needed to enlist the help of a company that specialised in temporary climate solutions before the coatings were applied. The tank needed to be dried out, as the advanced paint coating systems that are necessary to reline the tanks require specific environmental conditions; otherwise, the tank could be immediately subjected to a breakdown of the lining if the concrete was not dry before application. If humidity levels were too high in the tank and not controlled, it could result in increased project costs due to loss of time, loss of materials and wasted labour hours.

Solution

The contracting company, Stonbury, a market-leading contractor to the water industry, carried out the refurbishment work. High-pressure water jets, up to 3,000psi, were used. By using a turbo nozzle, they were able to remove any loose debris and aggregate in preparation for the concrete repairs and coatings to the tanks. It quickly became clear that Polygon’s market-leading expertise in providing temporary climate control systems could assist them in relining the water tank in even the harshest conditions.

Polygon’s experienced and highly trained team were called in to dry out the tank areas. This was done using a high-volume heater, which provided indirect, heated, dry air to the tank chamber. By utilising Polygon’s state-of-the-art climate control equipment, it allowed:

• Conditions to be closely monitored throughout the entire recoat process
• The contractor is to receive only the equipment required to meet the project demands
• The unique environmental conditions due to the moisture sensitivity of the coatings to be met.

Benefits

• Faster coating: Blast and coat 24/7 in any weather with controlled dew point—no delays, no blast rework.

• Improved coating quality: Apply high-performance coatings with confidence and start the second coat within 24 hours.

• Better working conditions: Cool, dry air meets OSHA standards and boosts worker productivity.

• Quiet operation: Electric dehumidifiers run silently on site.

• Contaminant-free: Clean, dry air with no foreign particles introduced.

• Lower coating costs: Reduce labour time by up to 35% with fewer weather-related delays.

• Lower equipment costs: Efficient systems help cut running expenses.