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Recent Water Hammer questions

Pipes banging at random times, water can be off or on, most

Pipes banging at random times, water can be off or on, most if the time it's rhythmic, seems to be mostly in the evenings, not weather dependant, we have already drained and refilled the water for the house, does not seem to be water hammer

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WCohn

Journeyman Plumber

Journeyman License

1,570 satisfied customers
I have a 2 story house, when i turn on the hot water faucet

I have a 2 story house, when i turn on the hot water faucet in the downstair kitchen sink, I hear banging noise coming from upstair bathroom near the sink, but not cold water, when i turned off the hotwater faucet, the noise goes away

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WCohn

Journeyman Plumber

Journeyman License

1,570 satisfied customers
We have persistent water hammer that has not been resolved

We have persistent water hammer that has not been resolved with the normal solutions, turning off the water, running it all out, etc. What does it cost to fix water hammer? It sounds like it's in a pipe behind our bathroom.

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28 satisfied customers
Thanks! When our upstairs shower is running we get hammering

Hello! Thanks! When our upstairs shower is running we get hammering with pulsating water flow... it begins a couple of minutes after water is on, and is relieved if we turn water to warmer, which is hot for us. The faucet is a single turn knob. So I've been reading about hammer etc. We don't have any knocking from other faucets, toilets etc that we've noticed.JA: How long has this been going on? And how severe is the problem?Customer: Hmm several months I suppose. I think it's severe when it happens, but it only happens at certain water temps...it rarely occurs when our daughter takes her hot showersJA: Do you plan on doing the work yourself?Customer: Depends on what is needed.JA: Anything else we should know to help you best?Customer: House is about 50 years old, shower faucet was replaced about 10 yrs ago when we retiled. No access to pipes in wall.

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Rick

Supervisor

27,324 satisfied customers
I'm experiencing a very loud sound that appears to be coming

Hello. I'm experiencing a very loud sound that appears to be coming from underground. It occurs pretty consistently about every hour (I logged the times). I tried the water hammer theory but it did not change anything. The sounds occurs whether or not I use water or don't use any water. It sounds as if a very heavy vault door is closing and it shakes my house. My house 2600 Sq feet and is only 6 years old. Nobody has been able to provide any assistance and it's becoming very frustrating. Any advice would be much appreciated.

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WCohn

Journeyman Plumber

Journeyman License

1,570 satisfied customers
I have a knocking sound when I release water from the bath.

I have a knocking sound when I release water from the bath. I was wondering if I could do anything to make it quieter.

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WCohn

Journeyman Plumber

Journeyman License

1,570 satisfied customers
We are trying to determine the cause of a thumping noise we

We are trying to determine the cause of a thumping noise we are getting that seems to be coming from the area of the PRV and is getting progressively worse every day.JA: Thanks. Can you give me any more details about your issue?Customer: We purchased the home in mid Dec. and it only made this noise 1-3 times a day for less than 30 seconds each time. Now it is hours on end. If you shut off the main to the house AND the main to the irrigation system, both are less than a foot past the PRV the noise stops, but opening one or the other it starts again. The only other way we can temporarily stop it is by turning on any faucet or flushing a toilet, but it starts again 30 seconds to 2 minutes after you shut the water off again.JA: OK got it. Last thing — Plumbers generally expect a deposit of about $18 to help with your type of question (you only pay if satisfied). Now I'm going to take you to a page to place a secure deposit with JustAnswer. Don't worry, this chat is saved. After that, we will finish helping you.

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Daniel Plourde

plumbing, hvac technichian

Vocational, Technical or Trade School

548 satisfied customers
We just finished a bathroom job. The shower has two shower

We just finished a bathroom job. The shower has two shower heads. The water pipes both hot and cold are half inch copper. I used a tee to split them and send cold and hot water to each shower head. Sometimes, especially when you turn one of the units off while other is still on you get terrible vibration in the pipes. This is fixed by cranking the valve all the way hot. I realize you are going need more info so please just tell me what info you need.

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5,624 satisfied customers
Im remodeling my bathroom and I would like to use PEX to run

Im remodeling my bathroom and I would like to use PEX to run my supply lines though I have a couple of questions.I looked at 1/2 inch PEX and the line and the connectors look like they have a smaller inside diameter than the 1/2 copper tubing. The existing tub, shower, and sink all have good flow and pressure. All things being the same (length of run and turns) would replacing 1/2 copper with 1/2 PEX result in a noticeable change in flow/pressure from the tub, shower, or sink?Would PEX require a hammer arrest?Last question: The shower, tub, and sink all have their own lines branching off the 3/4 however due to obstructions in the way I can only get to within about 1 1/2 feet from the 3/4 so I will have to cut the 1/2 copper lines and attach the PEX. The gentleman at the hardware store told me that I could use sharkbites to connect the copper to PEX even behind finished walls and floors. I would like to ask a professional in the industry though what their take is on using sharkbites behind finished walls or floors.

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Rick

Supervisor

27,324 satisfied customers
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