To complete level 3-4 of Where's My Water? without a touch screen, you'll need to use a steady stream of water from the left spout to deflect off a small mound of dirt.
While holding open the left spout, pay attention to where the water hits the dirt. Now carve the dirt so that some of the water droplets fall to the left of the mound. Eventually, enough droplets will accumulate so where you can collect the duck and fill the tub.