Buyer's Agent Performed Hydrostatic Plumbing Test w/out Consent

[Nathan Williams]

Hi All - I am under contract on a house. The buyer's agent, within the option period, had a plumber come out to the house to perform (what I think) is a hydrostatic plumbing test without my consent. What they did was inflate a ball to plug up the main sewer line, removed my toilet, and then filled the sewer system up with water to the slab level. Note that nothing was pressurized.

My first question is - Is this a hydrostatic plumbing test? Per most sources it is. Per other sources, it involves actually pressurizing the plumbing system. Some are calling this a water test while other sources clearly define this as a hydrostatic test. Which is it?

Did they violate section 7A of the Texas Residential Sale's Contract? "Any hydrostatic testing must be separately authorized by Seller in writing"

The test failed and now they are using this as leverage (obviously). What recourse do I have (if any)? I had no idea about the condition of the plumbing until today.