This sounds simple but it isn't. The strainer is new with new washers so that isn't it. We took off the strainer and it still leaks. We shut the water supply and took off the two handles and they look fine, unless they have to be screwed off. They are clear plasic handles with screws on top. Not sure if they have washers we don't see any except white hard plastic under there. Hmmm do you think we need a whole new faucet set? Thanks, any help will be appreciated.