Can you adjust the pressure on the shallow well jet pump? Mine seems to be too high pressure

Single drop jet pumps are the best shallow well pumps. They feature one-way check valves to keep pumps primed. The pump sits above ground, drawing water through a single inlet pipe. Because the mechanics are straight-forward, they tend to need less maintenance.

Jet pumps, the most common pumps for shallow wells, are mounted above wells and draw water up with suction. The height the water can be lifted depends on the weight of the air. Although air pressure varies with elevation, jet-pump-operated shallow wells are commonly limited to 25 feet.

Jet pumps create pressure through the use of an impeller, or centrifugal pump. The impeller moves water — known as drive water — through a narrow orifice, or a jet, mounted in the housing in front of the impeller. Constriction of the jet causes the speed of moving water to increase. As water leaves the jet, a vacuum sucks additional water from the well. This additional pumped water combines with the drive water, discharging into the home at high pressure.

The process of drawing water with shallow well jet pumps uses water. This means the pumps need to be filled with water before they can work. One-way check valves are installed to keep the water from flowing back down the well

sounds to me like a bad capacitor but since it did quit you may have now a bad pump

The water pressure is adjusted with the pressure switch, which turns the pump on and off. The pressure switch is typically set for a cut-in and cut-out pressure of 20-40 psi, or 30-50 psi. Usually there are adjustment directions on the inside of the switch cover. But, there are several other factors that may affect the house pressure. If there is a pressure tank that is pre-charged, the tank pressure may need to be reset, or the tank bladder may be ruptured. Have the entire system checked out.

Clean electric switchcontacts with crocus cloth. Adjust higher cut in pressure on this switch.

check air in your water tank should be less than you're cut in pressure..

Hi,
Those pumps will reach 50# when brand new, but soon the parts wear and then they will not make that pressure anymore...
Instead of replaceing the pump, just back the pressure down a tick or two to get it to shut off and not waste your electric....

Well Pressure Switch Adjustment Water Well Problems

heatman101

50 PSI for a 1/2 HP pump is approaching the upper limit for that pump. Many things can affect the upper limit. How far the pump has to pull water up the well pipe, is there any air leak what so ever on the input. If the pump lost its prime because it could not attain the 50PSI, I would suspect it may be just outside the limits of the pump at this point in time. If this pump is on a shallow well, it may be that the shallow well point is beginning to plug and not allowing as much water in which would cause a harder pull for the pump. I would turn the high pressure side down to maybe 45 and see if it operates properly at that pressure.

I hope this helps.

Is the little pipe that connects to the pressure switch clear?

I suggest you remove it and blow through it to make sure it is clear. If the pressure is getting to the switch, it has to shut off ... your switch should be set around 30/50 (on at 30 - off at 50)

There are tow screw adjustments on the switch. One is the high shut off and the other is 'differential'. This is the one you need to adjust. It gives the 'window' that the system needs 'between' on and off.

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The tree may have damaged a pipe,which is letting air into the system. I'm suprised you haven't mentioned a leak. It's possible for air to be pulled in thru the motor seal, if suction is high. High suction usually means trouble in the well, a clogged point or a malfunctioning check. Push on pipes and the pressure line to the switch, if they leak water out, air can be drawn in.