Project Name

GRP Water Tank Solution for Removal of Foul Odours

Air Water Treatments Limited

Tank Dimensions

8x7x3 metres

Nominal Capacity 168,000 Litres

Tank Used

Sectional Cold Water Storage

City Tanks

Air Water Treatments Limited

GRP Water Storage Solution for Removal of Foul Odours


Sectional Cold Water Storage 

air water treatment company logo

Our Clients Water Storage Requirements 

Our client requested a water tank solution which would be suitable to remove foul water odours for a waste management company.

To remove odour from a water supply it needed to be passed through a filtering system which Air-Water Treatments Ltd designed to ensure the output would be odour free liquid.

Internally Flanged GRP Tank

GRP Water Tank Lava Rock Filtering System

To reduce odour, the tank is filled with a lightweight volcanic rock, commonly known as lava rock. This is typically filled up to 70% of the tank height, and water is filtered through the rock from above as a spray, removing any foul odours. At the same time, air is lightly passed through the rock to help with the process through several large vents.

Odour free water is then collected in the area below the plenum floor and is dispersed through several pipes.

Our team recommended special bracing to help in the distribution of the lava rock within the tank, designing and manufacturing special manways was another design feature specific to this water tank request, larger manways ensure ease of filling for replacement of Lava Rocks.

Internally Flanged GRP Tank
Internally Flanged GRP Tank


GRP Water Storage Tank Solution

After initial discussions regarding design options and what was required, an 8x7x3m sectional tank was decided as the best solution for our client.

The tank required a plenum floor to be installed approximately 300mm above the base of the tank, where water is collected.

The false floor of the water tank was discussed and designed by both teams to ensure the best possible solution was available to our client. Once the details were finalised, Nicholson Plastics Tank Assembly Engineers completed the construction of the plenum floor.

Our mission: To help you find the most cost-effective solution for your water storage requirements.

Why work with us?

Over 50 years’ industry experience

Projects completed in the last 24 months

Nicholson Plastics is a UK GRP Water Storage Tank Manufacturer with a proven track record in the supply of water tanks to all industry sectors throughout the UK. We have an expert team on hand with over 50 Years’ industry experience. Our team works hard to provide exceptional industry lead times from quotes, site visits, order processing, and delivery. We are a British Standard approved company with full certification through BSI/ISO9001 including WRAS approved certified products for potable drinking water.

  • Over 50 years of technical knowledge
  • Quality assurance at a local level
  • UK customer support teams, backup, replacement service & advice
  • Supporting local and sustaining UK manufacturing
  • Regional sales representatives for site visits, emergency water requirements, and project advice


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