Deep well jet pump to submersible pump

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Tradosaurus

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I have a deep well jet pump with a two pipe system. My well is 3 ft diameter and I believe 40 ft deep but not sure.

Everything is working well but after reading about the efficiency and quietness of a submersible pump I am interested in converting.

I've attached a picture of my setup.

Do I need a casing over the submersible pump given my well is 3 ft dia?

In addition I want to add a hand well pump for long term outages. Will a hand well pump pull water through the well piping with the jet ejector at the bottom of the pipe?
 

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Reach4

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Yes, and that casing is called a flow inducer. Search on that term with the search box, above. It routes the water past the motor to cool the motor better.

Regarding using one old pipe for your new hand suction pump, if the static water level is less than 25 ft below the pump, I would think that would work. You would have to have the other pipe input to the jet/educator unit sealed.

There are also hand pumps that can pull from deeper. Simple Pump and Bison Pump are the two well known ones. You probably will not need that.

Some use the other pipe as a conduit for power wires to the well, but your well is right in the middle of stuff.
 

Mainiac1

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Looking at buying a property with a 300' very old deep well with a jet pump. the pump looks to be brand new and owner says it will run all day but not pump water. She had a guy quote $9000 to fix the well. The outer casing looks to be 3"-4" metal casing. Not sure of inner pipe size. I have limited experience working on my 60' shallow well jet pump. If I buy the property I would like to convert it to a submersible electric pump by pulling the inner casing out (Yee Ha..fun job I expect :( and then install the submersible pump along with a hand pump for when power goes out. I have had to pull a submersible pump on my Mom's place to repair a chaffed wire close to the pump end, and that seems alot better prospect if I need to get into it for repairs in the future. Am I on the right tract here? I expect the inner pipe is steel or galvanized and either the jet point is screwed and or some of the pipe at the bottom is corroded through. What are my options /your recommendations for adding the deep well hand pump? The little I read on them they can be $1000+! Thanks in advance for the help
 

Reach4

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Consider the Grundfos SQ pumps. Nominal 3 inches. A flow inducer is a good cheap addition. Search for that term.

You should measure better than 3"-4" . You can wrap a wire or sewing tape measure, or a strip of paper around the outside of the pipe. If using paper or string, make a mark. Straighten the string or paper, and measure. Then divide the circumference by pi (3.14) to get the OD.

One of these is useful if you will find yourself measuring more stuff: https://www.harborfreight.com/6-in-long-reach-digital-caliper-63714.html
 

Mainiac1

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Sorry, I didn't mean to post in this thread, meant to start a new one. Thanks for the 3" pump info.
 
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