A weir box is used in irrigation. They help control the flow and screen the water before it reaches the pumps. These are custom built tanks to meet the individual needs. M-1 Tanks offers a comprehensive range of irrigation weir boxes designed to help control water flow and screen water before it reaches pumps in irrigation systems. Our weir boxes are engineered for durability and long-term performance in various agricultural and landscaping applications. Available in multiple sizes and configurations, our weir box options include standard tank sizes from 1000 to 4000 gallons, as well as specialized M-series vault configurations for larger systems. Each weir box is manufactured using high-quality concrete in controlled conditions, ensuring consistent quality and structural integrity. Our weir boxes feature customizable inlet and outlet configurations, screening options, and access points, making them ideal for protecting pumps while maintaining efficient water flow. The precast construction allows for quick installation, reducing on-site labor costs and project timelines.