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Texas · TREC 48-1Texas hydrostatic testing addendum (TREC 48-1)

A hydrostatic plumbing test checks a slab home's drain lines for leaks, and it can cause damage. In Texas the parties use TREC 48-1: the seller authorizes the buyer to hire a licensed plumber for the test at the buyer's expense, and one box allocates the risk of damage – the seller is liable, the buyer is liable, or the buyer is liable up to a dollar cap.

What the addendum says

  1. Authorization (¶A)

    The seller authorizes the buyer, at the buyer's expense, to engage a licensed plumber to perform a hydrostatic plumbing test on the property.

  2. Who bears the damage (¶B)

    One box: the seller is liable for damage caused by the test; the buyer is liable; or the buyer is liable up to the amount written.

  3. Before signing

    The form tells the parties to consult a licensed plumber about the scope of the test and its risks before signing.

What the TC tracks

  • The signed addendum before the plumber is scheduled – usually inside the option period.
  • The risk box checked in ¶B, and any dollar cap.
  • Access for the plumber under ¶7A of the contract, with utilities on.
  • The test report delivered before the option period ends.

Questions about hydrostatic testing in Texas

Which TREC form allows a hydrostatic test?

The Addendum for Authorizing Hydrostatic Testing, TREC No. 48-1.

Who pays for a hydrostatic test in Texas?

The buyer pays for the test; the addendum separately decides who is liable for any damage it causes.

Who is responsible if the hydrostatic test damages the plumbing?

Whoever the parties choose in ¶B: the seller, the buyer, or the buyer up to a stated amount.

Who can perform the test?

A licensed plumber engaged by the buyer.

When should the test happen?

The form sets no date; buyers usually schedule it within the option period so they can still terminate.

Texas guides

Schedule the hydrostatic test as a dated task inside the option period on the deal in ClosingCode – the option deadline is on the same timeline.

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Source: Texas Real Estate Commission, TREC No. 48-1 Addendum for Authorizing Hydrostatic Testing (11-19-19, effective March 1, 2020).

General information, not legal advice. ClosingCode is software; it is not a law firm or brokerage, and it is not affiliated with TREC.