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.

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.

Works great. I put it just upstream off my sprinkler valve manifold. Used to have a pretty loud banging from the pipes when the sprinklers went on and off, now there is no noise at all! $22 and some elbow grease, yesss!

Hammering has STOPPED on Washer On & Off I’ve always had a loud bang when the Washer is running. As you can see from the picture, my house is older so the connections are in the basement and somewhat rudimentary. Smaller Hammer Arresters did not stop the hammering on my washer so I tried these larger ones. I hooked it up slightly different than another buyer, in that I bought a 3/4” garden hose threaded tee (2 female, 1 male): https://www.amazon.com/dp/B0D21SJJ6J?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1 and thus only needed one adapter for each cold & hot water lines: https://www.amazon.com/dp/B0BWSY2ZM7?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1 The arrester appears to have pipe threads but did seem to fit directly in the garden hose threaded tee without the garden hose to pipe thread adapter, but I tested it and it sprayed water, so the arrester definitely has pipe threads and requires the adapter. Once connected and running, there is still some faint knocking while the water is running (probably a different issue) but the loud thud/bang when the water shuts off is now non-existent. I would unquestionably buy these again if needed.