Stop an Under-Sink Leak: Trap, Supply Line, Shutoff — In That Order

Four places. Ninety minutes. Eight dollars.An under-sink leak is one of four specific connections, and each one is under ten dollars to fix if you diagnose before you replace.This book walks the four, in order of probability: \$3 washer pack.Fix: tighten, replace washer, or \$8 new line.body. Fix: valve replacement, \$15.trap, cracked or loose. Fix: \$5 replacement.- **P-trap slip-nuts** - loose or worn washers. Fix: tighten, or- **Supply-line connection** - at the shutoff or at the faucet.- **Shutoff valve body** - a valve weeping from the stem or the- **Drain tailpiece** - the vertical pipe from the drain to theFor each: how to tell which it is, how to fix it, and how to leak-test so you don't finish the job on Saturday and find a new puddle on Sunday morning.