An ounce of practice worth a ton of theory. This is by far the most clear demonstration I have seen online. Clear the concept and reduce confusion by such a simple way. Good job.

Just saw this video for the first time today. I gave it a thumbs up. I don't usually comment, thumbs up, or do any of that. Just a simple clear concise explanation and demonstration. No long intro, no useless information, no royalty-free music. I came here to learn about flow, pressure and pipe size, and that's exactly what happened, without all hype and nonsense. Extremely well done, sir!

Thank you so much for the extremely clear demonstration. You’ve cleared up a LOT of confusion with my water FLOW issues in my house with this simple video!

it seems like "The ballad of buster scruggs" is explaining the flow rate and pressure. video is very informative. Thanks

Thank you for your explanation! Sorry people feel the need to be jerks in comments. It's nice to have someone explain in terms that people can understand.

Really a good explanation. I learnt a lot from this small experiment. I am from India, working in water supply sector.

You did a good job showing the difference between pressure and flow and flow between different size pipes. I think the ironic issue is that the people who complain probably still dont get it. I deal with similar issues explaining things. thanks for this video, It helped me.

thanks for the video. I am messing around building an aquarium canister filter and I am trying to wrap my head around how to manipulate the diameter of my intake and outflow tubing in order to maximize the potential of my tiny little pump. I understand that my situation is beyond the scope of this simple demonstration however this video helped me to understand that if my intake tube diameter is greater than the outflow tube diameter than I will have more volume coming into my filter due to the larger pipe than the volume exiting my filter which uses a thinner diameter pipe. The result being that my litle pump will have an easier time battling the head pressure as it supplies my aquarium in the outflow line because there is an abundance of water coming in. --- my situation reminds me of a brake master cylinder with its larger diameter booster that creates significant pressure down the line in the much smaller brake lines. this is the only video on KZfaq that I have found that even attempts to explain the differences that pipe diameter makes on water pressure and flow. THank you

One of the smartest Video I have seen on KZfaq in a very long time. This guy is dead on. Thank You

That is one hell of a southern accent, yeeeeehaww!

Thanks for the simple explanation between water pressure and flow

Great demonstration. Trying to get my staff to understand this concept but really need a visualization for them, this is very helpful. Thank you so much.

You are exactly right. I have been mis-stating pressure when it is flow rate not making it to the top floor shower. Thank you Sir.

Yow this is mind blowing omg, this is the best demo of water pressure and water flow with respect to pipe sizing, I wish I had found this earlier. We studied this in school and I had trouble understanding this simple principle. Thank you very much!

Dude. You da man. Here I thought I was having a water pressure problem where it's a flow problem. Thanks!

I appreciate you uploading this

Very good illustration sir

Great explanation and demonstration. doing a good job, liked all the videos of yours I have seen...

This guy is exactly right. The quarter inch pipe pipe has more velocity but less volume than the three-quarter inch pipe....

Very informative. Simple, easy to understand and makes perfect sense. Thank you

Excellent video -simple explanation

Excellent lesson, well done. I very much enjoyed this presentation and it was very informative and on point correct.

I knew nothing before this video and this makes a world of sense, now I know what to get

Perfect example! Thanks for sharing!

Love it..."look one more time..'

Thanks buddy! I learned Alot! Keeping it simple.

Very informative video. Well done & thanks

Thank you for the demonstration you just helped me visualize something that I had no idea I needed to know. I did know about pipe size and it's relation to but I thought was water pressure but really water flow. But I had no idea that water pressure did not translate into water flow. Great demonstration thank you very much.

I'd like to thank you for your video's with your help I have rebuilt my whole well system great job

Excellent vid

good video and what I was looking for. Chees

Texan accent..... beautiful. Clear presentation

This is awesome thank you

Really great video, thanks!

Thanks for the great video and easy to follow explanation.

great vid mate. all the way from Australia

Good info , thanks.

good little video

Excellent lesson

Thank you for the clear information given here. It is very helpful to many of us. Kind regards and blessings.

Nice job brother

Thanks for the pressure/flow info.

Thanks for the explanation

Thank you for the experiment!

thanks from Canada!

So going to a smaller pipe for a couple inches (like the sink is smaller diameter) but then back to big doesn't make a huge difference to the flow if the majority of the pipe is bigger? I'm thinking about from my irrigation pump where pipe joins sometimes the coupler ID is smaller than the pipe either side?

Great presentation

GREAT DEMO!

Super helpful, thanks for the info :)

Great explanation.

Thank you. We have good water flow to the garden and at the pump. We used to have good flow into the house but we replaced the kitchen and bathroom faucets and the flow is pathetic. I think I will start there.

Thank you clearing my confusion, I always thought I have low pressure. Now I know that I have low water flow.

Great video! Thanks!!

Great information thanks!

Gratitude, your explanation was very helpful I really appreciate this, I was also thinking while the water flow is running we should have some amount of pressure at the gauge instead of zero .

Excellent. Thanks for sharing 👍👍👍👍👍

Thank you for explaining this in a way folks can understand. Every single forum, or nonsense life hack published out there lies to everyone. They all say that removing the flow restrictor will increase pressure. It'll in fact have the opposite effect. I've had to break it down to them various ways. One way is the nozzle, on a scram turbine, or rocket engine. Less flow means higher pressure, because the force behind it is a constant. I've had to explain it to folks regarding ventilation as well. They all think that what they want is giant hoola hoop sized supply duct. When all else fails I've had to show them the same way as you did. I take a garden hose and turn it on, and then without moving the spigot valve, I simply cover part of the hose with my thumb. A reduced surface area increases friction, which raises pressure, as it simultaneously reduces amount of material coming from the constant supply. This means that it saves you money, and hits harder. Go ahead, and search Google for "How to increase shower head pressure", and be amazed at every link detailing instructions that will deceive you into doing the complete opposite. Increasing your bill, and decreasing your pressure. Even the visual diagrams you'll see are completely false. Increased flow means decreased pressure. Decreased pressure does not however increase flow. Increased pressure does increase flow as well. This is not an oxy moron either, because the placement of hardware in the equation determine the outcome. I think I over complicated it.

Great stuff man!

Muy bien explicado! gracias

I really enjoyed the guy with southern accent imitating uneducated person with southern accent.... thanks for the video you answered my question somewhat... hey i gave u a like...

Hello very nice video! I would like to ask, I am finalising a design for my gravity fed drip irrigation and my source water is from 40m elevation away. Sould I put my pressure regulator still on the source or should I place it near my drippers?

What if the valve comes before the gauge, would you expect the water pressure to increase as you open the valve more? Why is that?

thank you. can you help me troubleshoot what I believe is a air lock in my hott water system

Good video 10000% correct only issue is most of these new construction "plumbers" have NO clue what they are doing either MUCH less the avg handyman or DIYer. 3/4" pex feeding a 4 bath home is absolute trash but inspectors keep on giving green tickets everyday!

Miss your videos.

nice and simple

Great, better than my instructor

4 bar of pressure is really good, in the UK we'd be lucky to get half that... Takes ages to run a bath

Nicer one understandable

Well Explained

We have terrible flow it seems. Wondering if the UV lamp system is to small. And can't give the flow we need. There is a restrictor installed before this lamp as well

Thank you God

very informative video

Great explanation. Thanks. Why do you recommend removing water savers?

Please let me know what device can we use to detect sound waves in utility pipeline 8 feet underground connected with an empty pipe at ground level 50 feet away?

Thank you very much☝🏼👍🏼

Thank you for your useful video .... can you give me some Equation

thanks!

Excellent!

Thank you!! Now I understand there is a difference between water pressure and water flow coming from the faucet! 🙌 Now, I did the 30 second test and I'm getting 29 ounces from my bathroom faucet... I feel like this SUCKS!! Is this normal?? I don't own a gauge to provide any additional info except it's an apt.

Thank be cause hubby he doesn't get this I've been trying to explain to him the same thing with the sprinkler system that's when he adds or subtracts sprinkler heads up change the volume of pressure I change the volume that comes out but I'm going to have watch this video maybe it'll sink in thanks

Can you do a video explaining why we typically run a 3/4 inch pipe to our outside hose bibs but when you look inside the hose bib the hole is really small. That and all garden hose accessories are really small inside restricting flow. Why aren't these full flow? I don't get it?

Good Job buddy ,you are doing Great !!! i like it, very good explained :-)

OK I have a question my well got hit by lightning and busted the casein have had the well replaced now we have sand in our well tank how can I remove the sand from the tank

Seems to me that the reason why the flow rate was so close in the bucket was that they were both being feed through the same 1/2 black laundry hose off the water faucet. Flow rate increases with pipe size but not if they both came through the same 1/2" line.

so if I run 3/4inch contractor hoses instead of 5/8 garden hoses for my sprinklers. I will get more water and spread coming out of my sprinklers? Water pressure is fine, just flow at the end sprinkler is a little thin

Great explanation sir. Im a plumber and often I need to mention volume and pressure are 2 different things. I tell them if they Increase the water service diameter There Should Be A difference. They never look convinced. Then I Mention there’s a physics/ mathematical explanation involving friction, rough pipe wall, fittings, length, viscosity pipe diameter ect. Combine a few There Should Be A noticeable difference. They get it but are still concerned if that will solve problem or will have to pay twice. I know my job well but I suck as a salesman. I feel if i explain something with to little or to many college words, I’ll be seen as another habitual wallet rapist. I will just simply send them your video b4 I arrive to clear things up some. Thank you sir. You added a year to my life. 🖖🏽 P.S. Since you have the materials, I seen a video with a guy using a MacGyver harpoon special to spear Alligator Gar from an impressive distance, made from PVC fittings, pipe, ball valve and a compressor. A strong enough gas combustion cannon too!

Thanks for the information. I am trying to run a lawn sprinkler system off my home well. The pump flow is around 8 gallons per minute. 38 gallon Pressure tank, 40/60 switch. I have a freeze less hydrant between the well and the pressure tank, closer to the well. Is it best to connect in area of the hydrant or near the pressure tank. Can I put a booster pump (if needed) for the lawn sprinklers or will that mess with the homes system? I will reduce sprinkler heads to create more zones if needed. I currently have about 12 heads but may split that if needed. Thanks for any assistance.

I've been scouring KZfaq for helpful videos on how to assess a private well accurately / properly to determine how to design your irrigation system. Does anyone have suggestions or videos that explain the 101 of designing a system off a private well??

Interesting. Our farm has 1.25" distribution piping everywhere except at the top of the well and at the house there are check valves that are not full bore (i.e. they reduce to 1"). How much will that little section effect overall flow?

i tried hooking up 3 or 4 sprinklers together in series with 3/4 hoses.. but they were hardly throwing any water.. My well is a 40/60 pressure set up.. On 40, off 60psi.. could I use one of those booster pumps at my hose spigot? then attach the main hose from there? would my well pump keep it supplied enough to send more water to the sprinklers?

Any tips on reducing water pressure on waterpick flosser machine? Would changing thickness of the hose will do it? Can I change thickness only on the tip?

if i have a pump of 10 bars and 10 nozzles closed circle pipe of one inch diameter then how the pressure can be distributed on 10 nozzles

hey man just got my journeyman's...whats better for water flow in a 1 bath, 1 kitchen house: a home run system or trunk and branch? How big should the well holding tank be? I'm about to troubleshoot my system, it has nice pressure and flow but only if a single faucet is open. sometimes the shower will completely stop running when the washing machine is running...

I have a 3/4” supply going to a 1" irrigation pipe. Looking at 100-200 feet of run. 60 psi. & roughly 9gpm at the 3/4”. Will I have enough flow (with 1" line) to overcome friction loss?

What happens to the readings of pressure and current indicators and the amount of water pumped when a break occurs on the main water line of the city network?

need 2-4 Bars pressure can it be achieved through selecting pipe size or it requires booster pump

Great video. Thank you. This got me a little closer to reaching a conclusion on my sprinkler system setup. Hoping you can help me make the final decision. My incoming line from the city is 3/4". I wanted them to convert it to 1", but that was going to cost me $2600. I have a fairly large yard that will have sprinkler heads anywhere from 10 feet from the city box to about 200 feet from the box. From what I've researched, the farther the pipe goes the more drag you'll get. But the drag in a 3/4" line vs. a 1" line is vastly different. So my question is this: would it make sense to run my entire sprinkler system with 1" PVC even though I only have 3/4" pipe coming in from the city? Or should I do it all in 3/4"? This is with 55-60 psi.

Pressure is the resistance of flow. Close the valve, you create resistance and hence pressure. Open the valve, you remove resistance to the flow and there for no pressure(that is not measurable with your pressure gauge).

question .. smaller diameter pipe should have more psi right ???? so it should fill up the bucket fast