Secure your livestock farms and recover your effluents
Reliable pit covers — 100% made in France, guaranteed IED compliance
Our product
Over The Gaz designs and installs custom-made slurry pit covers, engineered to meet the strictest environmental requirements. Our solutions are recognized as Best Available Techniques (BAT) and combine performance, durability, and compliance.
Choosing OTG means choosing a cleaner and more efficient farm. Our tent-type flexible covers reduce ammonia emissions by up to 90% and methane emissions by up to 50%. By preventing rainwater from entering the pit, they increase storage capacity and limit odor nuisances, providing a healthier environment for animals, farmers, and their neighbors.
Made from 950 g/m² PVC polyester fabric, they guarantee optimal long-term durability, with a 10-year warranty.
Where to find our products ?
Our pit covers, renowned for their ease of use and reliability, are installed throughout western France and across the entire country.
With the help of specialist installers, OTG supports farmers with the installation of their cover, ensuring high-quality service from the beginning to the end of the project.
Since our founding, dozens of farmers have trusted our team to design, manufacture, and install their slurry pit covers.
Need more information ?
To learn more about our products or services and discover how OTG can meet your needs, contact us today for personalized advice.
About us
Over The Gaz was born out of a growing market need: to support livestock farmers in bringing their facilities into compliance with the IED directive, which mandates the covering of slurry pits by July 1, 2026.
Already a recognized player in the market, Cooperl Équipements aims to offer the best pit cover and support livestock farmers in facing new regulations and the decarbonization challenges of livestock farming.
Every project we undertake reflects our high standards and expertise as a multi-specialist equipment manufacturer dedicated to livestock farm performance.




+15 years Of Expertise
100 % Made In France (In Ploufragan, Brittany).
+100 Covers Installed Per Year
Warranty Benefit From A Long-Term Warranty On The Fabric