When all the parts are out, inspect the interior of the valve for bits of deteriorated gaskets or mineral deposits. Use a cloth or fine nylon abrasive pad to clean the surface. Loosen mineral deposits by soaking them in vinegar. If you’d like to learn more about faucet repair; http://tkinterdesigner.com/bbs/home.Php?mod=space&uid=130030,, check out our in-depth interview with Dave Jones. If you can't get exact replacement, adapters are available for connecting different types and sizes.