We are fully self-contained and bring our own power with us in the shape of a diesel generator mounted inside the trailer. The trailer is double-walled and the generator enclosure is sound attenuated to minimize noise, but there is still some noise associated with it. A decibel meter reads about 70dB from ten feet away so the hum of the generator should not disturb anyone; we have heard AC units and pool pumps that are louder! We do want you to understand that there is some “white noise” associated with the process, however. If you feel that some of your neighbors may be overly sensitive to this sound please let them know prior to your appointment. The average pool (up to 20,000 gallons) runs for roughly 12 hours, so the sound will typically be gone somewhere later in the evening, depending on what time we start the trailer initially. Do not be alarmed if it runs longer than you may expect, as it has to achieve the desired TDS limit before it will shut down. Our guarantee of calcium of 200 ppm or lower makes it critical that it run as long as necessary to achieve this.