21. Standing water collects in drains and catch basins , stagnating and attracting the female house mosquito for egg-laying. 22. "We made sure all the sewers and the catch basins in the areas are clean, " he said. 23. Leave an inch at the top of the pot as a catch basin and fill it with water. 24. The plane came down in a long, dry rain-water catch basin in the center of the industrial park. 25. Catch basins are the grates in the street or slots in the curb through which storm water flows.26. The runoff then flows into a catch basin , where plants use the salt ions ( e . g. 27. They have to build a series of special catch basins to filter rainwater running off oily parking lots. 28. The frequency source for the first nonsolar timepieces, water clocks, was a steady drip into a catch basin . 29. Extensive measures, ranging from pesticide spraying by helicopter to dropping larvicides in catch basins , were undertaken throughout the region. 30. Growers have installed drains, catch basins and ponds to keep rainwater from washing away the thin layer of topsoil.
