This is the sister site to

Marsh Industries Ltd is a UK owned business which is making a big impact in the off mains drainage market at both home and overseas. From its base in Northamptonshire the company now manufactures over 250 sewage treatment tanks per month.

The Marsh team has linked up with one of the UK leading universities and Xylem to launch the Gaia bespoke process design aid for engineers and consultants.

The purpose of this site is to optimise the use of our Gaia system to allow Marsh Industries Ltd to design bespoke sewage treatment plants for each and every customers site specific requirements.

We manufacture our plants using 100% virgin resin (no chalk fillers), so they are one of the strongest tanks on the market. All of our tanks come with a 25 year structural guarantee and a 50 year design life.

If you have any queries please contact our office on 01933 654582 or email our sales department at