The Open will be one of the first global sporting events to remove single-use plastic water bottles, in a move supported by the UN.
The Open Water initiative has been developed with Bluewater to deliver a new approach to supplying drinking water by using refilling stations and reusable stainless steel bottles.
The project is supported by UN Environment's Clean Seas campaign and aims to raise awareness of plastic pollution.
Daniel Cooney, communication deputy director at UN Environment said: "Sport offers a unique opportunity to engage with a global audience on environmental issues.
"We commend this initiative to tackle marine plastic pollution. The Open offers a powerful platform to influence how people think about drinking water and its associated impact on the natural environment."