The American Standard spray handle on my kitchen sink leaks at the washer about every year or so. The handle is plastic, and I keep replacing the washer that goes between the handle and metal flex pipe that pulls up from the sink. I know my water pressure is on the high side, but I still think the seal should hold longer than a year or so? Don't know if they make a all metal spray handle, but would that snug into the washer better than the plastic? Overall I like the internals of the American Standard over the junk Moen it replaced. Any suggestions greatly appreciated. Thanks.