Why Water Hammer Arrestors Are SO Important | GOT2LEARN

Here's why water hammer arresters are important to have at home, and also how they work to protect your plumbing system.

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DISCLAIMER: Got2Learn is NOT responsible for any damage done to a property of which the plumbing wasn't done by a professional, I do not recommend doing your own plumbing if you are unsure about what you are doing, always hire a LICENSED contractor when doing any type of plumbing so you can be covered by insurances if something does happen, these videos are for entertainment purposes only!

[im_]

I'm not even interested in plumbing but here I am... And now interested

[marzinjedi]

I installed these in a hospital that vibrated like it would shake itself apart … and they fixed it perfectly !

[bboystance]

As someone who has no plumbing experience and is thinking of changing careers late in my life, I greatly appreciate the visual (pipe cut in half) and explanation of how it works. Thank you.

[jimjohnson]

When I was a kid, we were at the end of a 5 mile long, 24 inch gravity fed irrigation pipe for the farm. We would have to change the pipe twice per day, which would involve opening and closing that valve. My dad strictly warned us to close the valve slowly and to watch the pressure gauge carefully, especially when we closed it. It normally ran at 130 psi, (household is about 40 psi) but if you closed it too quickly, you could see spikes at 200 psi or more.

Shortly after I went off to college, my dad sold the place. The next year, he showed me an article in the paper where that pipe burst and caused some $200 k in damages. We knew exactly what happened.

[reallauradee]

Now I know why the wall goes BONK every time I shut off the hot water too quickly. My landlord is too cheap to look at it.

[chrisk]

I think you just saved me from a hell lot of fixes and expenses, because my homes plumbing system is crap. Every time I shut a valve or tap, there is a painful to hear sound like demolishing buildings

[McCrthy]

We had this problem at my work, whenever they used a pressure washer and released the trigger, the hose connector at the water outlet would spray a bit and a loud bang be heard within the wall.
As soon as I noticed it, I told the technicians about it. Nothing was done.

Two pressure washers started leaking within one week.
They bought another version. The water outlet started leaking. They changed it and put a stronger seal.
Some months later, water was coming out of the walls on the other side.
As they were tearing the wall down I just had to say "If only someone had told you about this before".

[sulixxx]

In industrial plants this is commonly used with oil lines, lubricant or hydraulic. It is called accumulator. It is filled with nitrogen gas inside a bladder, it is supposed to maintain the header pressure and avoid line hammering due to pressure sudden drops or sudden raise.

[khaledacar]

Dude your animation has stepped up to the next level, good stuff

[troywilliams]

I have a house that has some pretty bad banging pipes, what I found from experimentation and reading some plumbing forums is that the closer to the valve the better. I have had arrestors placed both near to the shutoff for a washing machine and also directly placed in the inlet for the washing machine. In the configuration where the arrester was close to the inlet for the washing machine hammer was eliminated completely.

Also, in the video above you show the size A 652-A arrestor which works much better than their 'washing machine' variant of size 'AA'. Based on my experience so far I wouldnt ever get a mini-rester as Sioux Chief calls them. The Size A unit is tested at a life cycle of 500, 000 cycles and 20, 000 shock cycles, if you look at the different arresters available on the market make sure to look at the O-ring material and the piston material.

[beachboardfan]

Dunno if you remember, but a few weeks ago I asked about low flow in my shower. You said it was probably clogged or bad cartridges. You were right. I disassembled them and the cold water valves were clean but the hot water valves were a mess with mineral deposits. I have private well water and always knew my water was hard, and learned that hot water causes the minerals in hard water to deposit. So I installed a water softener on the cold water line going to my furnace and cleaned my hot water fixture valves. So now I'll be curious to see how well it keeps the hot circuits clear of deposits.

Thanks for the tip 👍

[nimarus]

Our local volunteer fire department sometimes uses a fire hydrant outside of their building. Sometimes they open it wide open and the water pressure drops a bit. The problem is that they sometimes shut it too quickly. It seems like the last 3 times they did this, it would send pressure surging down the line and we'd see some damage at either water meters or some joints under the ground. Each time the water company would fix it and the volunteer fire department acted like they knew nothing.

I learned something today, I will implement this in my home ASAP even if the piping is made of highly forgiving hdpe.
And you might learn something today, too: copper metal and oxides are very good bactericides and fungicides. They also kill or inhibit some nematodes and larvae.  No worries about stuff growing in the copper pipes.

[COMMANDOFF]

WELL, IM 78 YRS. OLD AND I LEARNED SOMETHING. MAKES A LOT OF SENCE TO ME. I HAVE SEEN THOSE DEAD LEGS IN WALLS BEFORE, I NEVER THOUGHT WHAT THEY WERE FOR.

[connorsarantakis]

Extremely helpful I dabble in plumbing as I’m in the HVAC field but am renovating a house from 79. There’s no arrestors throughout the house and with the new appliances and faucets I’m sure without them it will cause issues.

[thebus]

I am a plumber crew leader and show your channel to my co-workers during lunch when they have questions.

[MikeHarris]

Practical engineering did an awesome demo of a water hammer from quickly turning off water where pressure goes from 60psi to a sudden 200psi in a split second for just turning off water

[dennischavez]

Very cool. As a young man I had run across “dead end T joints” while doing remodel demos.. Now I know what they were, and why they were there. Subscribe!

[Franco-lcpg]

I’m planning on buying a home within a year, so I’m watching videos like this. I’ll be back with an update. Hello & Good luck to all my 1st time home owners out there WE GOT THIS

[marcusaetius]

This channel is by far the best when it comes to plumping issues.