I had a Brewers vegie mixer installed by a licensed plumber the other day and ever since the first day of using it, every time after I turn the tap off, the water doesn't stop immediately. It keeps running/dripping for about 5 seconds before it slowly stops. I rang the company and they said that's just how the tap was. I totally don't believe it because I have another mixer (different brand) in the house and it doesn't have this problem at all. I asked the plumber who installed it and he said the tap was faulty. But the company keeps turning me down by saying that's how it is and they don't care if I sue them because it's completely legal like this. So just wanted to see what other professionals think. Is it faulty or most of the mixers are like this? Thank you for your help!