Posting this question to Terry's Forum..... currently finished installing a trial set of Dahl ball valves after being disappointed with all the junk sold locally. This includes BrassCraft,Nibco and Watts which eventually will not shut off water or eventually drip when I must perform maintenance or faucet replacements. The worse ones are the plastic stem with rubber washers which all drip when I attempt to turn off water to replace a failed supply side ceramic cartridge. It's gotten so bad I avoid these types completely however even the BrassCraft, Nibco, and Watts quarter turn ball valves also leak or drip. I've now started using Dahl quarter turn ball valves but thought I would post a question to the forum asking if there were "quality" quarter turn ball valves (preferably forged versus junk cast yellow brass) undersink shutoffs sold. I read it now normal and customary to replace both the shutoff valve whenever you also replace a kitchen or bathroom faucet. My concern is the main house gate valve shutoff is old and one day I may not be able to turn water back on after performing repairs or maintenance. Your thoughts?