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Water Hammer Arresters
go to faucet shut-offs - go to huge variety of copper fittings - go to drain keys & wrenchesgo to pipe hangers & holders - go to pipe cutting tools by Reed - go to dishwasher air gaps
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Water Hammer Arresters
go to faucet shut-offs - go to huge variety of copper fittings - go to drain keys & wrenchesRULE 1: Branch Lines of 20 Feet or Less
The Hydra-Rester should be placed at the end of the branch line between the last two fixtures served as shown (below).
RULE 2: Branch Lines Over 20 Feet
An additional Hydra-Rester (Y) should be placed as shown (below). The additional unit should be placed at the midpoint of the run longer than 20 feet. The sum of the fixture unit ratings of units X and Y combined, should be equal to or greater than the demand of all branches.
| Hydra-Rester
Multi-fixture Water Hammer Arresters |
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Laundry Mini-Rester #660-H
Mini-Rester
Single fixture Water Hammer Arresters:
| Item # | Description | Price & Quantity |
| 660-H | Female swivel hose thread x male hose thread connection | $19.77 |
| 660-2 | 1/2" MIP thread connection | $16.72 |
| 660-C | 5/8" O.D. compression connection | $17.15 |
| 660-T | 5/8" O.D. x 5/8" O.D. compression tee (for 1/2" nom CTS) | $17.10 |
| 660-TC0 | 1/4" O.D. x 1/4" O.D. compression tee (for ice maker tube) | $20.41 |
| 660-TC1 | 3/8" O.D. x 3/8" O.D. compression tee (for riser tube) | $20.53 |
| 660-TS | 5/8" O.D. spigot fitting branch x 1/2" female sweat | $19.44 |
| 660-S | 1/2" male sweat connection | $16.73 |
| 660-3S | 3/4" male sweat connection | $16.72 |
| 660-TR (660-TRB) |
5/8" compression x reverse nut
The 600-TR and 660-TRB are the same unit |
$22.52 |
| 660-TR1 | 3/8" compression x reverse nut | $22.85 |
| 660-T22 | 1/2" female sweat x 1/2" female sweat connection (no stop) | $18.12 |
| 660-V2 | 1/2" CPVC female solvent weld connection | $18.47 |
| 660-V82 | 1/2" CPVC male solvent weld connection | $18.09 |
| 660-TK | Toilet ballcock tee connection - female w.c. x male w.c. | $22.74 |
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"What is water hammer?"
Water hammer occurs a lot! It is frequently recognized by a "thump" or "bang", usually throughout the water line (if you have copper pipes, you'll tend to hear the noise throughout the house). Water hammer can be caused by a number of things. Many times a loose washer that is jumping around in the faucet or valve causes it. This can be fixed by identifying which valve is the culprit and fixing the washer. Other times it is simply caused by water traveling at a rapid rate and suddenly being shut off. The best solution for this is to increase the size of the water supply thereby slowing down the water (a larger pipe being able to deliver the same amount of water in gallons per minute at a slower speed). If this is not possible, then many times a water hammer arrester helps.
"At what angle can these water hammer arrestors be installed?"
Because of their secure water chambers, all Hydra-Restors and Mini-Restors can be installed at any angle.
"Can these water hammer arrestors be installed inside a wall?"
Yes. All of the water hammer arrestors shown above are approved for sealed wall installations with no access panel required.
"What are your most popular hammer arresters?"
The 1/2" through 1" (models 652A, 653B and 654C with standard male threads) for most situations, as well as the 660-HB which is specifically for hose threads on appliances such as clothes washing machines.
"I see that you have soldered (male sweat) models of water hammer arresters. They seem like a great idea since I won't have to use copper fittings?"
Yes, they are a great idea IF you are REAL good at soldering (not overheating). We offer them because we get asked for them. We would like to warn you to not overheat them while soldering as you could then damage the seals. For copper installations, we like to recommend the male threaded type of water arresters (or the compression type if you are using hard copper pipe).
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