Add the following text to the rule “Scientific Experiments”:

This action may only be taken if the student has performed the experiment “Reservoir Water” within the last 24 hours.

When a student takes a drink water from the local water supply, e may also attempt to purify the water by posting a comment of “Purify: DICE20” to the GNDT with the following results:
* If the result is 12 or less, the experiment was successful and eir sanity remains the same instead of decreasing by one.
* If the result is 13-19, the experiment has failed and eir sanity is reduced by 2 instead of 1.
* If the result is 20, the purifying equipment has exploded! Eir sanity is reduced by 5 and eir thirst remains the same.

Also, add the phrase “Reservoir Water” to the top of rule 2.9.

Also also, replace all instances of expiraments in the ruleset with experiments.