During a fixture flood test, what type of test should be performed for 15 minutes when an RV is equipped with a liquid waste holding system?

A static water test is the correct choice for a fixture flood test when an RV is equipped with a liquid waste holding system. In this scenario, a static water test involves filling the fixture to a specified level and maintaining that level for a designated time, which in this case is 15 minutes. This type of test is focused on ensuring the integrity of the plumbing fixtures and connections by looking for any leaks or failures under consistent water pressure without the additional variables introduced by water movement.

The purpose of performing a static water test is to verify that the holding system can withstand the weight and pressure of water adequately. It is particularly crucial in the context of RV liquid waste systems, as these systems can face significant pressure during use due to waste accumulation. By holding the water statically, inspectors can determine if seals, joints, and other components are performing as intended without the influence of movement or flow that could mask potential leaks or weaknesses.

This approach contrasts with dynamic water tests or flow tests, which involve the introduction of moving or flowing water, thereby assessing different aspects of the plumbing system. Pressure tests are also more suitable in situations where the system must be checked for robust pressure handling rather than leak testing under static conditions. Therefore, the static water test is the appropriate method