Is it permitted to manifold tanks of different diameters?

Manifolding tanks of different diameters is not permitted due to safety and operational considerations. When tanks are manifolded, they are interconnected in a manner that allows for the transfer of liquid between them. If the tanks have different diameters, their pressure ratings, flow rates, and structural integrity can differ significantly. This can lead to issues such as uneven distribution of liquid and potential over-pressurization of the smaller tank, which could compromise its integrity and pose significant risks for leaks or catastrophic failures.

Additionally, codes and standards governing tank installations typically require that manifolded tanks have compatible specifications to ensure safe operation. The use of tanks with differing diameters could violate these regulatory standards, compromising not only the safety of the system but also leading to potential legal and financial implications for operators. Thus, for the sake of safety, consistency, and compliance with regulations, it is inappropriate to manifold tanks that are of different sizes.