Findings:

• Water hammer
• Watson's water hammer pulse
• water pipe
• Hammer
• crosspeen hammer
• Armand Hammer
• Lucifer's Hammer
• Hammer's Slammers
• MC Hammer
• Jan Hammer
• Hammer Guard
• Simple as a hammer to the forebrain
• Arm and Hammer
• Hammer and sickle
• Tack Hammer
• Tilt hammer
• Trip hammer
• Dave "The Hammer" Schultz
• Impact Hammer
• Hammer pants
• hammer on
• Condemned to wires and hammers, strike every chord that you feel
• Orange Claw Hammer (user)
• drop the hammer
• glass hammer
• checker-faced framing hammer
• If the only tool you have is a hammer, then everything looks like a nail
• Dumbbell hammer curl
• Peg Hammer
• "I see," said the blind man to his deaf wife as he picked up his hammer and saw
• The Giant with the Hammer
• Ball-peen hammer
• The nail that sticks up gets hammered down
• claw hammer
• Pythagorean hammers
• International Proletarian Hammer Throwing & Rhetoric Flinging Competition
• Hammer System (user)
• HaMMeReD (user)
• Thor's hammer pendant
• Five Jive with Elmo Hammer
• Arm & Hammer
• Hammer of the Gods
• hammer loop
• Hammer Films
• Golden Hammer
• Hammer of the God Awful
• lucern hammer
• war hammer
• Arm & Hammer P.M.
• Hammered dulcimer
• If I Had a Hammer
• AMD Hammer
• Golden Hammer Syndrome
• tuning hammer
• hammer bite
• hammer toe
• Hammer to Fall
• Once I hit my best friend with a hammer
• Meteor hammer
• Please Hammer, Don't Hurt 'Em
• Armand Hammer United World College of the American West
• Plot hammer
• Megaton hammer
• hammer (user)
• Thor's Hammer
• Claus Hammer
• engineering hammer
• Hammer House of Horror
• Rotary hammer
• Slide hammer
• The Hebrew Hammer
• hammer drill
• The Seventh Hammer
• Hammer lock
• Maxwell's silver hammer
• Hammer break
• Eric Arthur Hammer
• Want to drive a hammer through my skull. Otherwise, things are good.
• Hammer time
• Bukowski stands alone, the bar bell's hammer in his hand
• Doc Hammer
• Hand hammered cymbals
• How to Philosophize with a Hammer
• If the only tool you have is a hammer, everything looks like a hardware catalog
• Ring the Hammer
• I'm far too hammered to realize this is a bad idea
• hammer down is how the hard girls kiss
• Sledge Hammer!
• Hammer, Ring
• and i am a hammer
• the ghostly tools that dance behind my closed eyes, you will grasp like hammers
• Steam hammer
• pipe
• pvc pipe
• warp pipe
• Verve Pipe
• pipe organ
• Building an ICBM out of matchstick heads and PVC pipe
• pipe dream
• Air pipe
• Blast pipe
• Pipe clay
• Piped
• Pipe layer
• Pipe laying
• Ceci n'est pas une pipe
• organ pipes
• I Heard You, Solemn-sweet Pipes of the Organ
• Lead pipe
• this is not a pipe
• light pipe
• On the pipe
• kill -PIPE
• peace pipe
• Hitting the pipe
• chamber pipe
• Keyboards with a big L-shaped "enter" covering the place Pipe usually is
• East River Pipe
• Passing the baby around like a peace pipe
• Put that in your pipe and smoke it
• Misery Pipe in the Fray
• Off-road H Pipe
• Pipe link
• named pipe
• pipe cleaner
• pan pipes
• Pipes
• Calvinized Pipe
• double pipe link
• This is really not a pipe
• kimberlite pipe
• full pipe
• uillean pipes
• crack pipe
• How to patch a leaking or broken pipe
• La Pipe
• Hash Pipe
• Broken Pipe
• The Very Clever Pipe Game
• heat pipe
• How to sweat (solder) copper pipe
• How to cut copper pipe
• Smoking dope in the world's biggest homemade carburetor pipe
• Primo Pipe
• dry pipe
• Loud pipes save lives
• pipe wrench
• Tobacco Pipe
• corn cob pipe
• pipe (user)
• Pipe tobacco
• glass pipe
• pipe bomb
• Pipe Dragon
• pipes (user)
• A pipe full of stones
• pipe bender
• This Bike is a Pipe Bomb
• Ceci n'est pas une pipe de Magritte
• Wesley Pipes
• How to smoke a pipe
• Daniel Pipes
• Pipe shows
• Notelet nodelet utility for displaying pipe links
• Pitch pipe
• Indian pipe
• half pipe
• corncob pipe
• whore pipe
• Flue pipe

If you Log in you could create a "Water hammer in the pipes" node. If you don't already have an account, you can register here.