Responsa for Eruvin 176:18

בימות החמה נמי מחזיק סאה ניתיב ליה סאה גזרה דלמא אתי ליתן ליה סאתים א"ה בימות הגשמים נמי ליגזור

and yet it was ruled: NO WATER MAY BE POURED?<span class="x" onmousemove="('comment',' EVEN WHERE A ROOF OR A COURTYARD WAS A HUNDRED CUBITS IN AREA, and fully capable of absorbing all the water before it reached the public domain.');">⁴⁴</span> - What, the other replied, is it that provision should be made against in that case?<span class="x" onmousemove="('comment',' The pouring out of water during the rainy season.');">⁴⁵</span> If it b suggested: Against the man's objection to the spoiling of his courtyard,<span class="x" onmousemove="('comment',' Sc. that the pouring out of the water should be forbidden as a preventive measure against the possibility of his desire to dispatch it without delay into the public domain for the reason given.');">⁴⁶</span>

Teshuvot Maharam