If you run out of DI water, what is the proper action?

If you run out of DI water, what is the proper action?

• A. Fill it up in the DI water tap.
• B. Continue using the remaining water until it is depleted.
• C. Use plain tap water as a substitute.
• D. Notify the TA to bring more water from another lab.

Answer: (A)

DI water is used in experiments because it has no trace ions that could alter reactions or measurements. When the supply runs low, the proper action is to refill from the dedicated DI water tap so you can continue with uncontaminated water. This maintains the purity needed for accurate results and avoids introducing contaminants that plain tap water would bring. Waiting or using remaining water can delay work or compromise outcomes, so using the DI water tap to replenish is the safest and most appropriate step.

DI water is used in experiments because it has no trace ions that could alter reactions or measurements. When the supply runs low, the proper action is to refill from the dedicated DI water tap so you can continue with uncontaminated water. This maintains the purity needed for accurate results and avoids introducing contaminants that plain tap water would bring. Waiting or using remaining water can delay work or compromise outcomes, so using the DI water tap to replenish is the safest and most appropriate step.