Wait, wait, WAIT! Before you back out of this post, first get up. Go to where you can see the pipes for your waterline and tell me what you see. Do you see any knobs down the line? If you don’t, then you should consider calling Royal Flush, the best plumber in Doraville, GA. The older your home gets, the more at risk of leaks sprouting up. Trust me, once it happens, you will be very glad you had shut off valves installed so that you waste very little water and money.