Help with pump

[smitty4687]

Never owned a dredge panned for a couple of years was given this pump new in box. Older model. What size dredge could it run if any with this pump.
- 2" NPT suction and discharge ports
- 149 GPM max
- 98 feet maximum head
- Honda GX120, 4.0 HP gas engine
Koshin Ltd engine hidels pump SEH-50X-BAJ-1
Thanks

 

Amazon Forum Fav 👍

DR.ÖTEK Metal Detector, Waterproof Gold Detector, Pinpoint & Terrain Modes, Professional Metal Detector - Grab it through Amazon!

[russau]

a 2 or a 3 inch dredge ought to work with that eng/pump combo! not near enough GPM for a 4 inch! GIVEN ........... I hope you THANKED that person!

 

[Beav]

I agree with Russau - 3" dredge max (barely) but will run a 2" fine. With 98 feet max head that translates into about 42.5 PSI max output, but you won't get that PSI at 149GPM.

Beav

 

[smitty4687]

thank you for the info. I did thank him.

 

[jsurddy]

I run a 3" dredge with a 1.5" outlet and 2" inlet pump. No idea what the output and pressure are because i built it from scratch, but i get lots of suction with it.


Sent from my iPhone using Tapatalk

 

[smitty4687]

Another question. I have 2 Keene a52 sluices. Ive seen some dredges using these. I want to build a 2 or 2 1/2" also have a semi trash pump with a 6 or 6.5hp Honda on it. I could swap out the motors if needed or would the 4hp with the A52 be enough or to much water and need a bigger sluice.

Sent from my SM-N910V using TreasureNet.com mobile app

 

[jsurddy]

A 2"-2.5" dredge setup is about the perfect size for that sluice. A semi trash pump will work, but they arent the greatest at building pressure and they are bulky. I say go for it if that's what you have. A 6.5 horse pump is definitely overkill, but you would have enough extra water output to let a friend run a high banker or another dredge the same size. I have a garden hose outlet that my uncle hooks up to for his high banker. If you dont want to deal with all of that then the 4hp pump will do just fine.


Sent from my iPhone using Tapatalk