Reference for Eruvin 173:8
דעבידא כי אסיתא:
- Where it is constructed in the shape of a mortar.<span class="x" onmousemove="('comment',' Sc. when it is self-contained being in the shape of a platform raised on poles above the water and having no wall near it. In such a case no private domain through which the water may be taken up to the platform can be formed unless the balcony is of the size prescribed by R. Hananya b. Akabya which allows for a hole of four handbreadths by four in the center and for four sides of ten handbreadths by four on its four sides.');"><sup>21</sup></span> <big><b>MISHNAH: </b></big>FROM A WATER CHANNEL<span class="x" onmousemove="('comment',' Not less then ten handbreadths deep and four handbreadths wide.');"><sup>22</sup></span> THAT PASSES THROUGH A COURTYARD NO WATER MAY BE DRAWN ON THE SABBATH<span class="x" onmousemove="('comment',' Because it has the status of a karmelith.');"><sup>23</sup></span>