Hourglass
Rabbi David Sperling | Tishrei 12, 5781
Hourglass Sand Timers on Shabbat
Rabbi David Sperling | Tammuz 15, 5780
Water filter on Shabbat
Rabbi David Sperling | Sivan 1, 5780
toilet pump on Shabbat
Rabbi David Sperling | Nisan 18, 5775
Opening Wet Succah Roof on Grass
Rabbi David Sperling | Tishrei 16, 5774