Jet pump deep well installation

Common lift height is about 30 to 80 feet but some deeper installations work. Well pits such as the one we've drawn are used especially in climates exposed to freezing weather, as a way to get access to the well casing and well piping and to route well piping out of the well through the top of the well casing and on to the building while protecting it from freezing. In addition to showing a well pit in this sketch, we discuss and illustrate well pits a bit more.

A more modern device, the pitless adapter which permits a water tight piping connection out through the side of the well casing is shown in our sketch. Both of the charts below are for 2-line jet pumps produced by Water Ace. The Water Ace charts shown in part above make clear that the capacity of a deep well pump to deliver water at a given flow rate varies by these factors:.

Watch Out : Safety warnings are throughout any pump manufacturer's instructions. Because some pump models are capable of developing internal pressures of more than psi, if your building piping, pressure relief valves, safety controls, wiring, and plumbing are not properly installed, very dangerous conditions including electrical shock, tank explosion, and leaks or floods can occur.

A two line jet pump refers to the observation that two pipes are connected between the jet pump and the well. In our photo at left you can see the two black plastic lines leaving the front of the water pump.

A two line jet pump draws water out of the well by magic: it forces water away from the pump and into the bottom of the well through one of the pipes usually the smaller diameter pipe. At the bottom of the well water from the jet pump is forced through a venturi device a sort of funnel shaped opening and then back upwards into the larger diameter pipe.

Water flowing through the venturi device at the bottom of the well piping draws still additional water out of the well and into the larger diameter pipe that flows back to the building. The requirement to have some water to send down to the well in order to bring a larger quantity of water back is why a two line jet pump can't provide any water or water pressure in a building if it loses its prime.

The following list and definition of two-line deep well jet pump and water well parts and terms is organized from the top of the drawing towards its bottom and uses names that correspond to those shown in our ugly sketch above.

If you keep losing prime at the water pump where a two-line jet pump is installed , it's probable that a check valve at the pump or more likely at the FOOT VALVE in the bottom of the well needs to be replaced. Carson Dunlop Associates' sketch at left shows how a foot valve works and where it is installed.

Replacing a foot valve in the well requires that the well be opened and the well piping be pulled out to permit removal of the old valve and installation of a new one. After replacing the foot valve you should shock the well since you've probably contaminated it by laying your well piping and parts on the ground and foot valves at the plumbing supplier are not kept in sterile containers. Watch out : If the pump motor won't shut off you should turn off electrical power to the pump to avoid damaging it, then diagnose the problem.

This article series describes various types of drinking water sources like wells, cisterns, dug wells, drilled wells, artesian wells and well and water pump equipment. We provide advice about what to do when things go wrong.

I am planning on replacing my very old well pump, but I realized that my new pump has the larger diameter pipe coming into the top, whereas the old pump had the larger diameter pipe on the bottom.

Is it always the case that the larger diameter pipe is the suction line? Any tips on how I should plumb it? I don't have the space to plumb in on the opposite side of the well from where the current pump sits.

Is it acceptable to use flex line, or should I stick with rigid copper or brass? Yes the larger diameter pipe opening on a 2-line jet pump is the suction line. You can tell me the brand and model of pump and we ought to be able to find the pump specifications and installation manual that will make that clear if you're missing those documents.

Thanks DanJoeFriedman. I have the manual. I was just confused by the fact that the old pump had the suction and the pressure holes opposite of how my new pump is configured. In order to install this new pump, I think I'm going to have to rotate the cap degrees.

The way it's oriented now, the larger diameter pipe suction is directly in front of the pressure pipe, so I'm not able to plumb it without getting really creative.

Hard to explain, but I'll try to post another photo. Hopefully one of these works. I took a look at your photo and will add it in this article above as well so that other readers may offer a suggestion let me know if you do not want that action.

The face openings on the new Red Lion RJC cannot be rotated, and indeed the inlet and outlet openings are reversed in position from your old pump. If you want to use the new unit I suggest giving yourself adequate working space to make the necessary connections by moving the location of the new pump to one side - more or less as you have it positioned now, or elevating it a foot if needed as well.

By removing the union and street-elbow at the well top and starting there you can make the necessary routing changes, routing the jet pump inlet and outlet lines to their destinations. It'll take a two more elbows but is do-able. Before doing that, however I'd give the company's tech support a call or email to ask if in fact the face of the pump can in fact be rotated OR if the pump can be installed upside down, as I agree that'd make piping simpler.

Watch out : convertible jet pumps like the Red Lion RJC shown at above left that can be swapped between a shallow well typically from 25 ft one-line jet pump to a deep-well two-line jet pump are typically capable of lifting in the 2-line jet pump conversion from a depth of about 90 feet.

A few one line jet pump models such as the Matercraft one line jet pump shown at above right advertise that they can lift from 70 feet, but if you take a closer look at the pump specifications you may find that although the pump can lift water from that depth its flow rate capacity in gallons per minute GPM may be significantly reduced.

Contact the Red Lion pump company in the U. Red Lion, itself a company dating from , has recently picked up the Little Giant pump brand that we've used for decades. You can use ABS piping and plastic elbows that may tolerate vibration with less leak risk; note that the manufacturer emphasizes that the pump should be securely mounted to a solid base. James, Check the model of your pressure control switch. And your other controls. Is there a pump protection circuit.?

I have a two-line jet pump. I can activate it manually by holding the switch down, and it will pump water and hold pressure. When I release pressure, for example by opening a hose valve, the pump does not turn on. I have replaced the switch. Could this be the result of a lowered water table we're in a severe drought?

On by inspectapedia. A 2-line jet pump uses a venturi valve at the bottom of its pair of water pipes water down one and more water up the other to bring up water from the bottom of a well or from a pickup point in a lake or water tank. A river water pump could also work with a 1-line jet pump as long as the TOTAL vertical lift from pick-up point in the river to end use point is less than 27 ft. A 2-line jet pump, in comparison, can lift water hundreds of feet. It is the flow of water through the valve, not the depth of the valve, that allows the system to work.

Putting the pick up point for your river water pump deeper into the water makes no meaningful difference in the pump's ability to deliver water. At about 30 ft. But the depth of a river water pick-up for a 2-line or 1-line jet pump can be important for other reasons: 1. In a well that may be ft. In a river or lake a similar depth is probably safe though on lake pump systems I've examined in New York, Minnesota, and other US states often permit the pump to sit on the very bottom when the bottom is fully covered by large rocks.

In a lake or river water pumping pick-up system it's generally better for the pick up point to be more-distant from the shoreline. Particularly in large lakes where distancing from the shore is actually achievable, getting more than 10 meters from the lakeshore reduces the level of shore-sourced bacteria and other pathogens that will be delivered by the water system. Deeper is better or worse? Does anyone know where I can order one? I have a two pipe well system in a 2" casing. The suction pipe goes to the bottom and has a foot valve.

The pressure line just pushes water through the cap and fills the gap between the suction pipe and the well casing. My well stopped supplying water. I've used my neighbor's hose to prime the pump but in the end, the pressure pipe builds pressure but the suction line produces no water. We lost all water in the house. I had a spare pump so I swapped the old one out so I assume that part of the system is working. It seems to me that I must have some sort of issue with the suction.

The pump is connected to the well head with plastic pipes on barbed fittings. There seems to be water leakage from both the lines between the well head to the pump. Could this be the problem?

Or is there something else I should check? Anonymous, I think so, in that if we fill only the down-pipe, when it pushes water up from the foot valve in the well and the injector therein all of that air that was in the riser-pipe the larger diameter pipe will be pushed into the pump; the result could be that the pump impeller becomes air-bound.

On by mod - replace injector in old 2 line jet pump. Larry: If you are trying to replace the front end of an old well pump tat's no longer sold, you'll probably have to buy a new jet pump. That's because pump front-ends or injector assemblies aer not universal. But before throwing-in the towel on your old pump, take it to your local plumbing supplier to see what they have at hand. My existing one has rotted and i need to locate a new injector. Is anyone still making them?

Thank you. Raguram If no settings such as the pressure control switch were changed then the problem may be loss of water at the source, such as a well, used to fill your tank, or the pump itself may be failing - a clogged or dirty impeller. We are using jet pump for water delivery in over head tank. Becky If the toilet was running continuously that may have run out water from your well.

Try this: 1. Leave the pump off for an hour or more - giving the well a chance to "recover" 3. Corey Check the manufacturer's instructions. Some jet pumps, but not all, can indeed be converted between 1 line and 2 line versions by seapptng the front end or impeller assembly. Ok so my house set up is for 1 line the jet pump that i got is for 2 line jet pump can i cap it off or exchange the front. On - by mod - Could a two line jet pump be used as a single line by merely plugging the pressure line?

No, in that Arrangement - just plugging one of the lines means that your 2 line jet pump won't pump any water. It may help to understand how a 2 line jet pump actually works; the "pumping" occurs when the pump sends water DOWN to the venturi that's at the bottom of its pair of well pipes.

There water squirts through the venturi, causing a larger volume of water to return back up the larger of the two 2-line jet pump pipes and onwards into the building water system. Blocking either of those lines means no water.

But some jet pumps are convertible to single line from two line by changing the front end of the pump to a one-line jet pump system. Dennis: The ejector in a 2 line jet pump needs to quite close to or even below the surface of the water, in the well, though you'll see in our ejector tailpiece illustrations that it does not have to be at the very bottom of the well piping. Otherwise it can't generate the required lift. To be clear about how your 2 line jet pump is working to deliver water to the building in the building or somewhere above ground a 2 line jet pump includes an impeller that pushes water down the smaller-diameter well pipe and near the bottom of that pipe, in the well, water is pushed through a jet or venturi - an opening shaped like a funnel.

The venturi, by reducing the opening size in a funnel shape, increases the speed of water passing through the venturi - also called the "injector". That increase in water creates a suction that draws additional water up through the tailpiece, into the injector, and the combined volume of water sent down the pipe plus additional water sent up the larger pipe back to the pump is what actually delivers water into the building.

Now lock the Hex. Nut 2 to prevent the Round Head Screw 15 from loosening. To access the Round Head Screw 15 , the pressure valve Cap Nut 1 needs to be removed and then refitted after adjustment to prevent tampering. There are four main types of jet pumps; deep well, shallow well, multistage and mini. They do not require coupling as they are known for being relatively easy to install.

How do Jet pumps perform when compared to the alternatives? For more information on Jet Pumps click below to view our list of frequently asked questions. These questions answer common queries regarding, cost, power, efficiency, information regarding how they work and much more. How to install a Jet Pump. Prepare a level concrete foundation for mounting the Jet mono block and tighten the motor base using the foundation bolts as shown in Fig.

Refer Fig. The volute casing internal design permits air to rise towards the pressure valve during the priming process when pouring water through the removed filling plug on the pressure valve as shown in Fig. When the pump is primed, further water cannot be added. Stop pouring water and refit the filling plug. Shut the valve after priming.