Purification for non-sanctified purposes does not require intention; the inadvertent act of immersion is sufficient • Why is an immersion within a rainwater waterfall unable to purify? Why does a detached wave from the sea need 40 se'ah to purify a person according to the Shach, Taz, and Meiri? • What type of incidental water contact with fruits engender their susceptibility to ritual impurity? • Can one have intentions to achieve specific levels of purification while no longer immersed? • Is the first tithe equivalent to unsanctified products or does their higher level of sanctity require specific intentions to permit their handling?