| [ SNU ] in KIDS 글 쓴 이(By): iLUSiON (화려한집념) 날 짜 (Date): 2003년 10월 15일 수요일 오전 08시 14분 00초 제 목(Title): Re: [질문] 유체역학과 공명(resonance) vibration and noise from your plumbing is due to vacuum (air space) created when water sucked out of your pipe. it happens to old pipes where a lot of things stuck inside pipes where water flow is not steady. that is why when you open your valve a little bit, you can reduce the vibration and noise. man....to do proper plumbing you don't need know aeroelasticity. :( the truth is simple! iLUSiON's advice: hehe... call plumber and repalce old pipes or clean it up using chemicals. iLUSiON whitepolarcow@hotmail.com |