What is the maximum pressure allowed when air testing a 12ft. diameter fiberglass tank?

The maximum pressure allowed when air testing a 12-foot diameter fiberglass tank is 3 Psi. This value is determined based on industry standards and safety considerations for testing the integrity of fiberglass tanks.

Fiberglass tanks have specific structural characteristics that require careful handling during testing procedures to avoid damage or failure. Air testing is performed to ensure that the tank is leak-proof and functioning properly, and maintaining a controlled pressure—such as 3 Psi—ensures that the testing pressure is sufficient to identify leaks without exceeding the tank's material limits.

Exceeding this pressure could lead to rupture or other structural failures, which would compromise the integrity of the tank and pose environmental and safety hazards. Therefore, the limit of 3 Psi is set to balance effective testing with the need to protect the tank's structural integrity.