4" Jet Pump Design

[Quinc]

Very interesting! Have you done anymore testing?

 

[Azure]

Very interesting! Have you done anymore testing?

I'm using this newer design now, it creates powerful suction at 2/3 to 1/2 throttle. I've tested it 10' deep with no issues pulling up material. I used it for 4 hours the other day, didn't get any clogs which was a problem I had with the previous versions.

 

[russau]

I like your design ! but the shape of the 4 water inlet tubes will pobley drop the waters PSI at the sweet spot and have a reduced suction at your nozzle . a water filled vacuum gauge would determine its suction at the nozzle . a test would tell ! But you did a nice job on this !!

 

[Gare]

There sure is a LOT of VERY SMART people on this website. This is probably why I feel OUT OF PLACE LOL

 

[russau]

Gare we are all learning something all the time ! Your not OUT OF PLACE here ! you fit in just fine with us !

 

[mjb Mike]

some very good info thanks I was thinking about setting one of these up to get rid of some sand were i want to detect under water.

 

[Azure]

I like your design ! but the shape of the 4 water inlet tubes will pobley drop the waters PSI at the sweet spot and have a reduced suction at your nozzle . a water filled vacuum gauge would determine its suction at the nozzle . a test would tell ! But you did a nice job on this !!

I'm sure there's room for optimization, it meets my needs for now. At full throttle, it produces a jet of water out of the flare that goes above the sluice riffles. The first time I ran it at full throttle, I was confused, thought the high pressure hose had come off at first.

 

[russau]

Thats all that matters for now if it meets your needs ! Nice job and presentation & THANKS for posting your idea !

 

[Reed Lukens]

I'm sure there's room for optimization, it meets my needs for now. At full throttle, it produces a jet of water out of the flare that goes above the sluice riffles. The first time I ran it at full throttle, I was confused, thought the high pressure hose had come off at first.

That generally means that you need a longer feed tube to get the jets deeper in the water...