Sioux Chief 653-B Hydra ester Water Hammer Arrester for Piping Systems

Installed it on my washing machine hot and cold and on my dishwasher. I now forget sometimes I am washing as I got so use to the pipe sounds to tell me the washer is done. Banging of the water pipes is completely gone. Strong build , it seems durable as there was no metal flaking or compression while tightening it to the dishwasher line or washing machine line. Had no leaking.

Used this for my sprinkler system. I first tried a tiny version (size AA) from Home Depot, which worked a little bit, but this larger version (size B) from Sioux Chief was what I needed to fix my water hammer problem. Installed in about 10 minutes. I added a female 3/4" threaded fitting to my existing PVC system and then screwed the Arrester into the threaded PVC fitting using teflon tape.

After years of water hammer, this fixed it; no more banging pipes.

I had a the banging of the pipes every time my irrigation system would turn on or off. I had serveral plumbers come by with no resolution. So you Plumbers, take heed and have these in your arsenal for knock repair. It works if you place it near the offending device. In my case I easily installed it on the irrigation valve myself and the banging went away. I did have to purchase a PVC cutting tool from my local box store along with a piece of PVC and sealant. But once done, I resolved a problem I had since I purchased the house 4 years ago. Only problem, I have to replace annually it appears due to hard water in desert. But it easy to install now that I have it set up and it’s not expensive..

Installed just in case there was any water hammer. Nice product.

just installed lawn sprinkler system. All is well but the water hammer at each and every zone shutoff time driving me crazy. no matter how to secure pipes, etc no help. found this one, 3/4in with 3/4 in pex tee and installed at the position right after the water valve in the basement where goes to the sprinkler system outside underground. amazing thing happened, no nosie, no more water hammer noise any more. wow, great. so anyone want to get rid of the annoying and dangerous water hammer, do it and you will be so relieved by the result.

These arrestors finally fixed the water hammer from our LG washing machine. We tried the mini arrestors (also Sioux Chief brand), and they made the problem somewhat better for about a year...but then the water hammer came back with a vengence. We wanted a simple solution, but decided to try these big ones instead...we had to buy a bunch of extra things from home depot to make it work for our purposes (3/4 brass tees, male garden hose thread couplings, garden hose female adapters, pipe dope, teflon tape). It feels a bit like overkill, and the setup is not so simple, but this is what finally COMPLETELY solved the water hammer problem with our LG washing machine, so we have been very happy with it. Rant: appliance manufacturers really should be required to have built-in and permanent solutions to prevent water hammer. Ridiculous that they can sell appliances that have the potential to do serious damage to peoples homes.

Like others have said, the threads will likely be damaged. They really should have a plastic cover over them during manufacturing to protect them from damage as they are likely tossed in a bin before being boxed up. As it was, it leaked the first time, so I had to take it apart and file on the threads a bit to smooth them out. As for the hammering, it has helped, but not eliminated it. I still get one or two hits before it kicks in, but it is better than before. Other issue is that it says one day shipping, but it was two days for me, which seems to be an issue with a lot of Prime products any more. Tell me up front it will be two (or three) rather than suckering me into ordering it because you claim it will be next day.