Testing Different Water Pump IMPELLERS Performance and Efficiency - SEE INSIDE THE WATER PUMP

In this video, we are going to test different centrifugal water pump impellers. We are going to see how well they perform compared to each other but also, we will measure the efficiency. How big of a difference does it make for a water pump if the blades are slightly curved or offset from the center? You will see all that in this video!

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[Connor-sk]

It would be interesting to see how much static pressure these impellers can make, could test it by seeing how far they can push water vertically up a pipe before they can't push further

[LuxGamer]

Add 3 more spirals to the last so it can stay in the race. I was really surprised by how good it was, and I was a bit disappointed it was disqualified because of an arbitrary rule.

[lordscan]

Dont forget that the pumps are not always meant to transport water, and the last impeller looks a lot like the ones using to transport salmon fishes for the salmon farm industry. Great videos, love them.

[KeoLokaiHD]

12:58 "finest german engineering" lool

[punisher]

0:14 orange water pump impeller 1943 german variant

[justarixell]

still waiting for the day to see your pumps not leaking

[BRUXXUS]

Wild! Never seen a water pump use that scroll shape for an impeller. I bet that thing could also deliver some great pressure when optimized.

[Mouhfighter]

man i love your videos, but PLEASE print yourself some seals with TPU :)
It really grinds gears that the water it getting everywhere :D
Edit:
Also, turn the measurement around. Let all of them run for exakt 10 sec (measure by hand or eletronics) and then just measure the wait of the water pumped into a new vessel.
This is a lot more precise, especially when using a normal kitchenscale.

[ZappyOh]

My intuition tells me, that all the curved impellers should be mirrored ... so the curves opposes the counter-clockwise rotation.

[BlueJay]

Hey, the reason why your pumps didn't prime in the beginning is that it's actually the output tube that primes the system. Those pumps are designed to push water, not pull water. So the pushing of the water through a tube creates the suction force to pull the water into the inlet.

[alice]

6:47 "and this is boring as hell" that line killed me

[riba]

Yes, we want more of these comparisons!

[Tootall]

I like how you incorporated your promotion for PCBWay into your video.

No harsh subject changes. Nice!

[Cevans]

I just want to say that I appreciate the inclusion of closed captioning for this video (not sure if you have been doing it for all your previous ones). You have a strong accent which I struggle to comprehend fully in real time, so I was really happy to see that I didn't have to heavily rely on auto-generated closed captioning. Your videos are great, and I know you have put in a LOT of work to make them, so I wouldn't fault you if you didn't take the extra time to include the closed captioning. Just goes to show how great you are at what you do! Thank you!

[ovalwingnut]

I was under pressure to find a video like this I really was pumped when I spotted this one. It wasn't watered down and had GR8T information that flowed smootly from start to finish. Thanks so much.

[Gearz-]

Caught me by surprise that the spiral one had the best performance. Shows that sometimes the oddities are the answer

[kyronrc]

Great video! now i know why BMW's water pumps are spiral shape 👏🏻

[JB-xcji]

That last one was a scroll pump. It is common in compressors (hvac and vacume pumps) and pumps where there are large but soft particles in the fluid. They are not typically used for water transport (mostly used for gas compression) and are prone to damage from hard particles in the fluid (like sand and rocks). Great video, one suggestion. A great way to increase the validity of test results when it come to pumps is to run the pump for a specific time to get the flow rate as opposed to timing the filling of the bottle (like in previous videos). An electric timer, a valve, and a relay would work wonders. Still a good video and keep up the great work.

[Exandria]

Ahh yes. The reoccurring observation in science that the only thing better than the “swazica” is the Fibonacci sequence. 😂

[quandiy]

The scroll type impeller have been used in sewage pumps and they work well with sludgy fluids.