Any ideas what could cause a bathroom sink in a newly constructed house to run slow. It fills up about three inches and then keeps pace with the incoming water. Then needs about a minute to drain after the water in shut off. Thanks
Try checking hight of popup stopper,may not be high enough,then check to make sure tailpiece is not bottomed out in trap.Five items on Sylvans list won’t cause slow drainage, If they do,then doing plumbing for 30 yrs I must be in a dream.