Mishnah Yadayim 1:3: Regarding waters which have become unfit for animals to drink, if they are in [any kind of] vessels, they are invalid [for washing one's hands]; and if they are in the ground [i.e. in a ditch], they are valid [for washing with them, by immersing one's hands in them]. If ink, sap, or metallic dye fall into them and change their appearance, they are invalid [i.e. the waters are invalid for washing]. If they had been used for any occupation, or if one soaked one's bread in them, they are invalid. Shimon, the Teimani said: even if one intended to soak [one's bread] in these [waters], and it fell into those [waters instead], they are valid [for washing].

הַמַּיִם שֶׁנִּפְסְלוּ מִשְּׁתִיַּת הַבְּהֵמָה, בְּכֵלִים, פְּסוּלִים. וּבְקַרְקָעוֹת, כְּשֵׁרִים. נָפַל לְתוֹכָן דְּיוֹ, קוֹמוֹס, וְקַנְקַנְתּוֹם וְנִשְׁתַּנּוּ מַרְאֵיהֶן, פְּסוּלִין. עָשָׂה בָהֶם מְלָאכָה אוֹ שֶׁשָּׁרָה בָהֶן פִּתּוֹ, פְּסוּלִין. שִׁמְעוֹן הַתִּמְנִי אוֹמֵר, אֲפִלּוּ נִתְכַּוֵּן לִשְׁרוֹת בָּזֶה וְנָפַל לַשֵּׁנִי, כְּשֵׁרִים:

Mishnah Yadayim 1:4: If one rinsed vessels in them, or if one cleaned out measuring vessels with them, they [i.e. the waters used] are invalid. If one rinsed out [already] rinsed or new vessels, they are valid [i.e. the waters are valid to be used for washing]. Rabbi Yose invalidates [the waters] regarding new ones.

הֵדִיחַ בָּהֶם אֶת הַכֵּלִים אוֹ שֶׁמִּחָה בָהֶם אֶת הַמִּדּוֹת, פְּסוּלִים. הֵדִיחַ בָּהֶם כֵּלִים מוּדָחִים אוֹ חֲדָשִׁים, כְּשֵׁרִים. רַבִּי יוֹסֵי פוֹסֵל בַּחֲדָשִׁים: