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How do I turn down the water pressure? - Dewalt 3800 PSI Pressure Washer

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How does a home well water system work?


Deep well.
Pressure valve located on front of above-ground-storage-tank will turn pump on-off depending on amount of water pressure inside tank.
When water is consumed inside home, the pressure valve responds to the lower pressure and closes electrical contacts... sending electricity to water well pump located deep underground.
The pump turns on and lifts water through a pipe into the above ground storage tank.
When the tank is full of water, the pressure valve senses the higher pressure and turns off electricity going to pump
Pump shuts off.
There is a one-way check valve on the water line going down to pump, and this keeps water from flowing back down into well.
The above ground tank maintains water pressure for the house.
When pressure is reduced by taking a shower, the pressure valve turns pump on again, and cycle repeats.

Aug 20, 2014 | Water Heaters

Tip

Well Pressure Switch Adjustment Water Well Problems


1fa4b10.jpgIf you have a water well to supply your water needs, then you also have a well pump is some form and a well pressure switch that controls the water well pump and the pressures that it turns on and off at. Making the adjustments to this switch can be confusing, I will try to take away some of the confusion for you. There are many types of well pressure switches made. I will describe the adjustment of the most common type of switch and you can possibly translate from there if you have a different type of well pump pressure switch.

  1. Turn off the power to the well pump before making any adjustments. The blue flash from the arc when you short out the power is scary and leaves you seeing stars for a time.
  2. Drain all of the water pressure from the system and check that you have air pressure in your well pump pressure tank. If you intend to set the cut in of the pump at 30 PSI then make sure there is 28 PSI in the air part of the tank. Always 2 PSI less than your cut in pressure.
  3. Start the pump, run water, and then observe the pressures as the pump starts and stops. Remove power when adjusting to avoid the blue flash…you are working in close proximity to the electrical contacts of the switch.
  4. To raise the cut in pressure turn the taller center nut down to increase the spring pressure. This will start the pump at a higher pressure. To lower the start pressure turn the nut up or counter clockwise.
  5. To change the differential pressure, the difference between the start and stop pressures, you need to adjust the smaller nut that is on the side of the pressure switch. Turning this nut down will increase the differential pressure and likewise turning this nut counter clockwise or up will lower the differential pressure.

This process can take some time, but it will be worth it to have your pump and water system operating efficiently. You also can set the well water pressures to your liking.
This is a basic guide to help you fine tune your water well pump and your well pump pressure tank, along with your water pump pressure switch, so that they all work together to give you a good stable supply of well water.
http://www.fixya.com/support/r3689163-water_problems_pump_problems

http://www.fixya.com/support/r3690698-pump_problems_water_tank

http://www.fixya.com/support/r3690937-pump_problems_pressure_switch

http://www.fixya.com/support/r3695577-jet_pump_jet_water_pump

on Dec 22, 2009 | Plumbing

1 Answer

The little white tube in my Jaccuzzi toilet comes disconnected with the pressure of the water and you have water all over the floor. Any solutions?


You have too much pressure coming through the line. Turn down the water supply pressure by turning down the knob on the supply tube so just enough water comes through to flush but not so much that is blows the tube out.

Mar 01, 2013 | Refrigerators

1 Answer

Hot water pipe clinging when closing valve


This could be a lot of possible fixes. Try putting a piece of tube insulation around the pipe at where it is hitting on a another pipe or something. This would at least stop the noise. That is the nature of the beast with the noise. Hot water responds that way depending on what is going on in the air .

Jan 02, 2013 | Home

1 Answer

Adjusting pressure


The smaller "differential" nut you turn down for higher cut-out pressure or up for lower cut-out pressure. The bigger "range" nut you turn down for higher cut-in pressure or up for lower cut-in pressure.

Dec 13, 2010 | Square D FSG2J24M4CP Water Pump Pressure...

1 Answer

I had a water line bust. After fixing the leak, I lost water pressure. Someone tried to fix the problem and now we have little to no water flow. I have to pumps . The smaller pump that feeds the house is...


The nut on the larger spring in the pump pressure switch: Usually the larger nut in the pump pressure control switch adjusts the pump cut-on ("cut-in") AND pump cut-off pressures simultaneously. This is the left-hand spring (and nut) in our photo. That means that whatever the gap is between the cut-on pressure and the cut-off pressure, that gap is maintained, but the entire operating range of the pump is raised or lowered. Turning the large nut clockwise RAISES BOTH the cut-on and cut-off pressures. So turning the large nut clockwise shifts the whole operating pressure range of the pump UP to HIGHER pressures.
Conversely, turning the large nut counter-clockwise will lower the whole pump operating range. This is the simplest adjustment to make.
Photo (left) courtesy of a reader.
The nut atop the smaller spring in the pump pressure switch: this nut is used to narrow or widen the gap between the pump cut-on and pump cut-off pressures. This is the right-hand spring (and nut) in our photo).

Turning the small nut clockwise (tighter) will RAISE the CUT-OFF pressure, and vice versa, loosening or turning the nut counter-clockwise will lower the cut-off pressure. Watch out! If you loosen this nut too much you can set the cut-off pressure below the cut-on pressure and the pump will turn on and run forever (or until it burns up.)
Which nut to turn in the pump pressure switch control, and which direction to turn it, are usually visible on a label inside the pressure switch cover. Above we show photos of a common Square D water pump pressure control switch (Schneider Electric) and the label with pump control adjustment details. [Click to enlarge].
Here are Example Pump Pressure Switch Adjustment Instructions from Square -D Understanding how pump pressure control switches work and which way to turn which of the two nuts in the control can be confusing.
On a Square-D Pumptrol® 9013FSF-2 pump pressure switch, for example, Square D tells us that we
  • Turn the Range Nut #1 (the larger spring and nut) clockwise (to the right or "down") to raise [both] cut-on and cut-off pressures. This is "tightening the nut down" against the spring. ("Rightie-tightie, leftie-loosie" as Mara Gieseke says to her kids). Thanks to reader Rise for this clarification.

    In other words, adjusting the pressure on this spring shifts the whole operating range of the switch up or down, but keeps the difference between cut-in and cut-out the same, whatever it happens to be (typically it's about 20 psi from the factory.)

    If you want the pump to turn ON (cut-in) sooner
    , that is, at a higher water pressure, turn the nut clockwise or "tighter".

    If you want the water pump to turn ON (cut-in) later, that is, at a lower water pressure, turn the nut counterclockwise or "looser".

  • Turn the Differential Nut #2 (the smaller spring and nut) clockwise to raise the cut-out pressure.

    If you want the water pump to turn OFF (cut out or cut-off) at a higher water pressure, turn this nut clockwise or "tighter".

    If you want the water pump to turn OFF (cut out or cut-off) at a lower water pressure, turn this nut counter clockwise or "looser"

    Here is why the small nut is called the "Differential"
Keep reading at LINK

Nov 03, 2010 | Flotec TC2151 P2 Well Pump Pressure Switch

1 Answer

If main water supply line is shut off and thermostat is turned up on my gas water heater could relief valve open ?my girlfriend was taking a bath and told me the water pressure was weakening and water...


pressure would go down any time the water is cut off. Temp went down no make up water relief went off cause you turned it up. put it back and put the main back on.

May 09, 2010 | Water Heaters

1 Answer

My Troy Built pressure washer shuts down when I turn on the water. Is the pressure cut off valve that might be frozen?


Hold the trigger of the pressure nozzle open. Turn on the water . Wait to see water coming out of the pressure wand.Then try and start the engine. They can get air locked.

Feb 12, 2010 | Karcher 2500 PSI Pressure Washer

1 Answer

Karcher Power Washer that surges up and down with water pressure.


Before you start it up:
1. Disconnect the high pressure hose 2. Connect the water supply and turn on 3. Make sure water is flowing through the pump
Start the motor, run for about 10 seconds and then turn off.
Turn off the water supply, connect the high pressure hose, turn water back on, start the motor and away you go.

May 29, 2009 | Karcher 2500 PSI Pressure Washer

1 Answer

Vaillant Mag 325 warm water only full pres. cold low pressure


you need a certain amount of water pressure for the water heater to turn on this is actaully one of the biggest problems that all manifactures forgot to tell anyone it is normal for the computer to shut down beings it is designed to heat water at a fast rate when you turn the water down, it's not enough pressure for for sensors to turn on to heat the water so turn on the spigot a little more and enjoy

Jan 26, 2009 | Water Heaters

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