41. Modern taps often have aerators  at the tip to help save water and reduce splashes. 42. Without an aerator , water usually flows out of the tap in one big stream. 43. Another visual hallmark of the 701 was its combined oil tank and de-aerator . 44. Faucet aerators  are the least expensive water-saving devices and probably the easiest to install. 45. Most water-saving aerators  also contain a disk that restricts the water from the faucet. 46. Install most heads as with aerators . 47. Operating a surface aerator  on a hot day can raise the temperature of the entire pond. 48. Aerators  : It can get so hot that swimming pools get as warm as bath water.49. Fountains are a popular method of surface aerators  because of the aesthetic appearance that they offer. 50. All contents of features at Tenderfoot underwent flotation analysis using a standard water / aerator  process.