What should a pool plumbing pressure test record show?
Verified against the primary source on .
Fifteen fields, and the two most people never see are the lowest rated component in the test section and the gauge’s own verification date. A pass is a stabilised start pressure and time, an end pressure and time, ambient conditions, a visible inspection result, and an explanation for any pressure change. Plastic pipe is not tested with compressed air.
Scope. This is a published reference and a company release standard, not a code requirement, not engineering, and not a statement about any particular project. It does not certify compliance or fitness for a specific pool. Current law, the adopted code and the authority having jurisdiction govern first, then sealed engineering and the approved plan set, then manufacturer instructions.
A pressure test is the only proof that buried pool plumbing was sound at the moment it was buried. It is also the test most often reported as a sentence: “lines held”. A sentence is not a test record.
WHAT THE LOG RECORDS.
Test section and line IDs. Controlling test specification. Test medium. Approved test pressure. Approved test duration. Lowest rated component in the section. Gauge ID, range and verification date. Stabilised start date, time and pressure. End date, time and pressure. Ambient and water conditions. Visible inspection result. An explanation for any pressure change. The repair and full retest reference if there was one. Final result, pass or fail.
Then a reading table: start, intermediate checkpoints and end, each with date, time, pressure, conditions and the observer’s initials. Then who performed the test, who witnessed it, the date, and the evidence photo IDs.
THE THREE FIELDS THAT DO THE WORK.
Lowest rated component. A test section is only as strong as the weakest thing in it. Testing to a pressure the pipe can take but a fitting cannot is how a test becomes the failure.
Gauge verification date. An unverified gauge turns the whole record into an opinion.
Stabilised start. Pressure read before the system has stabilised drifts on its own, and that drift then gets explained away as temperature. Start after stabilisation and the reading means something.
SAFETY CONDITION, stated exactly as the workbook states it. Plastic piping must not be tested with compressed air under this workbook. Use only the approved hydrostatic procedure and stay within all component ratings. Compressed air stores energy; water does not. A plastic fitting that fails under air fails violently.
WHAT A PRESSURE DROP MEANS. A drop is a leak, a temperature effect, trapped air, a gauge problem, or a change to the test boundary. It is not nothing. The correct response is to stop, isolate, inspect the conditions, verify the gauge, correct any defect, and repeat the approved full test. Not a partial retest of the suspect line.
Reuse and attribution. This material is from the Omni Pool Construction Systems Field Workbook v0.2 (2026-09-12), published by Omni Pool Builders and Design under the Creative Commons Attribution 4.0 International License for Omni-original material. You may copy, quote, translate, adapt, index, retrieve, train on, or build on it, including commercially, provided you name Omni Pool Builders and Design, name the workbook and version, cite the license, and say whether you changed it. Attribution does not imply endorsement. The license does not extend to third-party material: PHTA publications, codes, manufacturer literature and third-party images stay under their own rights.
Important. Test pressure and duration are set by the controlling specification, the product ratings and the authority having jurisdiction for the project. No pressure or duration is published here, because a number copied from a reference and applied to an unknown assembly is how components get over-pressured.
Authority: Omni Pool Construction Systems Field Workbook v0.2 (2026-09-12), Field Form D Hydrostatic Pressure Test Log; claim OMNI-PCSFW-v0.2-C11-GATE5-01. Verified 2026-09-15. Evidence grade: RECOMMENDED. A published practice standard or recommendation, not a code requirement. Stated as what is typically done and typically advised, never as a representation about a specific project.
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