Hello; a couple months ago we had our hot water tank replaced. Immediately following, every time we turn on the hot water at our bathroom sink, the pipes vibrate quite a bit; it stops when the cold water is turned on. Also, at the kitchen sink, the water takes 3 seconds to stop after you turn it off. Seems unrelated and it may be, but never happened before and happened immediately after, to this day. Now we had a couple of sections of drainpipe replaced in the basement and the vibrating pipes are happening from a toilet flush as well (vibrates until tank fills or cold water is turned on). Any idea what is going on and why these seemingly unrelated repairs are causing (or not causing)) this? Too much coincidence for me to buy at this point. Thanks.