In these Parshwanath traditions, the water used for shanti dhara or for the uvvasagahram abhishek pakshal is a part of the ritual offering to the Tirthankar. It is generally not intended for drinking. It is used for purification and for anointing or pouring over the idol as part of the ceremony, and sometimes offered as prasad to the ritual space or left as sacred remains.

If you want to participate respectfully, you can:

• Use separate clean water for personal drinking.
• Follow the exact guidance of your temple tradition or guru, since Digambar and Shwetambar practices can differ in small details.

If you’d like, tell me your specific tradition (Digambar or Shwetambar) and I can give a more precise note based on that lineage.