Hydrotesting Red Flags You Shouldn’t Ignore!
- Gabriel Mikael
- 4 days ago
- 2 min read
Leaks today are better than leaks tomorrow — if you catch them in time.
Hydrotesting is a crucial step in testing your new home’s plumbing system. It involves running water through pipes under pressure to check for leaks, weak points, or installation defects before finishes are applied. But not all hydrotests are done properly.
Here are the common red flags you need to watch for during hydrotesting 👇
❌ 1. Skipping the Test Entirely
Some contractors skip hydrotesting or claim it's unnecessary to save time.
✅ Always insist on a hydrotest — it’s your only assurance against future leaks behind the wall.
❌ 2. No Documentation or Test Report
If there’s no written test report or proof of test results, you have no official record.
✅ Request a signed copy of the hydrotest report, including date, pressure used, and inspector's name.
❌ 3. Short Testing Duration
Proper hydrotesting should last at least 30 minutes to 2 hours, depending on the system.
✅ Rushing the test may hide slow leaks or pressure losses.
❌ 4. No Pressure Gauge Monitoring
Without using a pressure gauge, there’s no way to detect minor pressure drops.
✅ Ensure a gauge is installed and monitored throughout the test.
❌ 5. Testing Only Cold Water Lines
Some contractors only test the cold water line and skip the hot water system.
✅ All lines must be tested, including water heaters and exposed PPR/PVC joints.
❌ 6. No Visible Water or Pressure Loss — But Signs of Dampness
If there’s a musty smell, water stains, or damp patches — something is wrong.
✅ Look for soggy concrete, wet insulation, or water pooling near test points.
❌ 7. Leaks That Are “Temporarily Sealed”
If leaks are sealed with tape, glue, or silicone during the test — that’s a shortcut.
✅ Demand permanent fixes, like replacing faulty pipes or fittings.
📸 Pro Tip: Be present during the test, and take photos of the pressure gauge and exposed piping. Don’t rely solely on the contractor’s word.
💬 Water is your home’s worst enemy when hidden. A proper hydrotest today saves thousands in future repairs.
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