Every air seal burial vault CMV Fabrication produces is water-tested before it leaves the facility. The completed vault is submerged or subjected to simulated hydrostatic pressure that replicates conditions the unit will face underground. The test confirms that the air seal is functioning, that the welded seams are watertight, and that the dome-to-base fit creates the trapped air pocket the design depends on.
This is not a batch test or a sample test. Every individual vault is verified. If a unit does not pass, it does not ship. For funeral professionals and families purchasing an air seal burial vault from CMV Fabrication, the water test provides a level of assurance that the vault's protective capability has been confirmed on the specific unit being delivered, not assumed from a production standard.
