Replies

1. 
   IMERC | Jul 09, 2003 03:12am | #1

   Turn off the water.

1. 
   G80104 | Jul 09, 2003 03:13am | #2

   That when the hammering starts when you turn it off!

1. 
   IMERC | Jul 09, 2003 03:24am | #3

   Sorry couldn't resist.

   Turn off the water to the whole house...LOL

   I take you mean when you turn off the faucet and not the water supply.

1. 
   G80104 | Jul 09, 2003 03:27am | #4

      10-4 just started past few days, never had this problem before.

1. 
   Gabe | Jul 09, 2003 03:32am | #6

   Just curious.......are you on well water with your own water pump?

   Gabe

2. 
   G80104 | Jul 09, 2003 03:36am | #9

   Gabe,

   community well with about 50 homes on the system.

    side note,did you hear about the 2 newest players the Avs picked-up?

3. 
   Gabe | Jul 09, 2003 03:41am | #10

   Yea I sure did. Paul is one of the best and will add to any team that has him. But more than one team has tried to buy a dynasty and failed. Look at NY's budget.

   They may have inadvertantly done damage to the rest of the team.

   A couple of months before I get my hockey fix.

   Gotta love the sport.

   Gabe

4. 
   Gabe | Jul 09, 2003 03:43am | #11

   Oh I forgot.

   You will have to drain the lines and refill them with all the taps open shutting them from the bottom up. Some times small pumps will add air to the system. Ask your neighbours if they have noticed the same problem lately?

   Gabe

5. 
   G80104 | Jul 09, 2003 03:51am | #12

   Will give it a shot, will report back with the results. Thanks for the advice!

6. 
   IMERC | Jul 09, 2003 03:54am | #13

   Is it possible that you have a pressure spike?

7. 
   SamT | Jul 09, 2003 04:17am | #14

   Turn off water supply, turn off feed valve to HW heater... open all valves in house from top down, leave open 15 min's.

   Turn on water supply, open feed valve to HW, close valves from bottom up.

   Repeat every 2 years or as needed... Call me in the morning. :>)

   Above ####-u-mes you have arrestors installed.

   PS. Air in the lines "should" prevent water hammers.

   SamTSleepless in Columbia. Diurnal rhythm? What songs did they do?

8. 
   BillHartmann | Jul 09, 2003 05:02am | #16

   "You will have to drain the lines and refill them with all the taps open shutting them from the bottom up. Some times small pumps will add air to the system."

   No the problem is that YOU DON"T HAVE ANY AIR IN THE SYSTEM.

   Most system have small closed pipe stubs mounted at the faucets. The idea is that they trap air and that air is a cushion for sudden surges in water flow. They work, but only for a short time period. Over a few months the air get absorbed by the water and they stop working.

   The open all faucets and and drain and refill allows air back in those chambers and they work again for a short period of time.

   All that said there are 2 different types of water hammer.

   One is "big bang", sometime followed by a series of rattles, caused when a valve is shut off quickly. This usually is seen with soleniod vlaves in washers and the like. That problem can be fixed with the surge arrestors. But for a permanet fix get the sealed units. That have a seal between the water and air so that the air is no absorbed.

   The other type of water hammer is caused by a loose washer or worn and loose stem or sometimes by a forgien object in the pipe. At some point in the water flow the pipes will start to make a continous noise and stay that way until the valve is opened or closed some more. That noise can be a screaming sound, a chatter, or a "machine gun fire" sound.

9. 
   HeavyDuty | Jul 09, 2003 03:32am | #7

   He meant turn off the water, drain the system.

   Tom

10. 
    IMERC | Jul 09, 2003 03:36am | #8

    Trying to post seems to have become a chore.

    WTB that one of your pipes have come loose. If not big box sells a hydraulic dampner for the pipes.

    Glad that's your fun project.

2. 
   jimmyk | Jul 09, 2003 04:20am | #15

   Drill a hole in one of the pipes. No more hammer.

1. 
   SamT | Jul 09, 2003 05:22am | #17

   Molten, you abyssimal nincompoop, you have to drill a hole in each pipe in turn till the WH quits, then you plug all the other ones with wooden matches.

   The use of wooden matches is highly reccommended as this will turn your DW system into a fine FF system also. Ya see, if there is a fire the match will burn away and let the water put out the flames that this post is sure to generate,

   hehehe hawhawhaw guffawguffaw cacklecackle snickersnickersnicker

   SamTSleepless in Columbia. Diurnal rhythm? What songs did they do?

1. 
   jimmyk | Jul 09, 2003 03:49pm | #20

   bahahahaha!! I didn't waste my time explaining that because it's common sense to most of us.

2. 
   FastEddie1 | Jul 09, 2003 03:31am | #5

   I posted a similar question a while back and there was a pretty good discussion.  Go find discussion # 30719.1

   Do it right, or do it twice.

3. 
   Dinosaur | Jul 09, 2003 07:16am | #18

   Have you tried putting in hammer-absorbing air column(s)? Assuming you're running rigid copper, all you'd need is a tee or two, a length of type M, and a couple of blind caps. You set it up so the column runs straight up as close to the offending faucet as possible. You need at least a foot or so for each line; more is better. Then when someone/something slams a faucet shut, the air is compressed when the water bounces off the sudden closure--and voilà! no hammering 'cause the air absorbs the shocks. The taller the column, the more shock it can absorb.

   You didn't say under what conditions the hammering occurs. Is it hot only or cold only or both? Is it when the washing machine or dishwasher is running? Is it only one particular sink/machine, or all of them? If you can pinpoint the shut-off valve(s) causing the problem, you'll know where to install the column(s).

   Dinosaur

   'Y-a-tu de la justice dans ce maudit monde?

4. 
   kostello | Jul 09, 2003 11:50am | #19

   Pro-dek.

   have you got one of these 'water hammers' in your extensive collection??

   if not i think that G80104 would probably let you have his for free.

   aleks