wet the whole thing with a shower, spray it on the dirt, leave it for 20 to 30 seconds, and rinse it off. * if it is very dirty, lightly rub it with a sponge and rinse it off.
spray directly on dirt, rub lightly with a sponge, and rinse off. when it is very dirty, it is effective to leave it for 2 to 3 minutes.
wipe off the water, spray directly, leave for 5 minutes, and rinse off. use about once a week to maintain the effect. more effective when used daily.
some bathtubs, floors and walls may turn white, so check in an inconspicuous place before using. do not leave for more than 10 minutes.
if it is difficult to form bubbles, wash the tip with water in the "stopped" state.