Answer

In Jain practice, boiled water should generally be used within the permitted time limit after boiling. For a tapasvi, if more water is needed after that time has passed, the water should be boiled again before use.

There is no single universal number of times per day that applies to every Jain tradition.

Explanation

The rule depends on factors such as:

• The Jain tradition followed: Śvetāmbara, Digambara, Sthānakvāsī, Terāpanth, etc.
• The specific vow or tapas being observed
• The guidance of one’s Guru, Maharaj Saheb, Sadhviji, or community practice
• The accepted time limit for using boiled water in that tradition

In many Śvetāmbara traditions, boiled water is commonly treated as usable only for a limited number of hours after boiling. Once that period is over, fresh water is boiled again if required.

Spiritual Understanding

The purpose of boiling water is connected with ahimsa—reducing harm to minute living beings in water. A tapasvi observes extra care because tapas is not only physical austerity, but also purity of conduct, discipline, and compassion.

Takeaway

For a tapasvi, water should be boiled again whenever the accepted validity period has passed. The exact timing should be followed according to the instruction of your Guru or the tradition in which the tapas is being performed.