The device does exactly what I bought it. For the size of my pond (about 4000 liters) is the sucker perfectly adequate. Those who do not have the possibility to drain the water with the sludge directly into the patch, should make the sucker up and run the broth in a pan and leave taking care of the drain hose remains in the tub. There are probably more comfortable Silt, but then cost a multiple of this. Who needs a good and cheap Silt should include this device with the selection
