Responsa for Eruvin 175:16
<big><strong>מתני׳</strong></big> חצר שהיא פחותה מארבע אמות אין שופכין בתוכה מים בשבת אא"כ עשו לה עוקה מחזקת סאתים מן הנקב ולמטה
UNLESS IT WAS PROVIDED WITH A TROUGH HOLDING TWO SE'AH<span class="x" onmousemove="('comment',' The reason is given in the Gemara infra.');"><sup>36</sup></span> FROM ITS EDGE<span class="x" onmousemove="('comment',' Lit., 'the hole'.');"><sup>37</sup></span> DOWNWARDS,<span class="x" onmousemove="('comment',' I.e., the Interior of the trough.');"><sup>38</sup></span>
Teshuvot Maharam
On the Sabbath, a Jew is not permitted to pour sewage into a stone-trough, which is situated partly in his yard and partly in the public domain (used to carry off sewage into the street), unless the trough is covered for four cubits length in the public domain.
SOURCES: Cr. 69; Pr. 31; L. 341; Rashba I, 850; Mord. Shabb. 375.
SOURCES: Cr. 69; Pr. 31; L. 341; Rashba I, 850; Mord. Shabb. 375.
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