In a previous thread I had asked if there was a way to have a sieve above the water line. Because I have a 5000 gallon hole in my backyard now and am sick of digging. https://www.gardenpondforum.com/thr...sieve-above-the-water-line.22766/#post-370356 @DoDad recommended a Zakki sieve. A sieve that is driven by vacuum pressure. It looks like his products are top notch, and with them come a top notch price something I can't afford. So far I have only found 1 other person attempt to re-create a vacuum sieve and the lid on his cracked, and that was the end of it. http://www.koiphen.com/forums/showthread.php?152071-DIY-Pressurized-Pre-Filter&highlight= So here I am chronicling my own adventure to replicate a vacuum sieve. At first I was curious as to how the vacuum was created. Pond pumps don't like to suck air. Then I realized you could create an air vacuum, using a pond pump that was sucking water. All you had to do was have a vacuum vessel partially filled with water to start. pump out the water, and tada, you create a vacuum that will draw water up and out of the pond. I had some old small water pump stuff from a previous project so I threw together a small mock vacuum sieve, and it worked. Part 1 = Part 2 = Now to sourse a reliable pressure vessel for the large scale recreation.