WaterMark is the set of Standards set by the Australian and New Zealand Governments, which are to protect the consumer from inferior materials that can cause water damage to property. The range of products is diverse, but for the homeowner, it is essentially the products with valves and mixers that activate and adjust the flow of water under pressure. ( eg showers, taps, faucets )
If you suffer water damage as the result of the failure of a non-Watermark approved product, you will not be covered under your insurance*. ( * refer to your specific insurance policy coverage detail. )
If you suffer water damage as the result of the failure of a non-Watermark approved product, the plumber who installed it will not be covered under his/her insurance. He or she will likely be responsible for damages.