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Pump not putting water in tank - Plumbing

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  • tberan1 May 11, 2010

    Please expand on what type of pump and what you are attempting to do. Thanks, Tom

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1.Open the priming port plug of the pump, fill it to full level with water.
2.Close the priming port with the plug.
3.Set the flow control valve to full close position.
4.Start the pump, and slowly open the control valve to appropriate level, such that the pump will not loose prime.(no more water going out).
5. If nothing happen, disassemble the pumpend and check if the impeller is still Okey., If damaged, replace the damage impeller
6. Assemble the pump and reinstall to its' location.
7. Do, Step 1 to 4.

Just send your e-mail for further assistance.

Posted on Oct 27, 2009

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Posted on Jan 02, 2017

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1 Answer

Water not going into well water tank


Is the pump running when power is ON?
Put ear against pipe and listen for pump.
Have you installed a check valve?
Check vlave lets water pass through the pipe and enter tank, but the valve closes after pump shuts off and keeps water from falling back down into well.

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How do you get mold out of fresh tanks?


There should be a fresh water fill on the outside of the coach. If not then there is a valve that would need to be turned that will allow water to be put into the fresh water tank. If that is the case then it will be a bit more difficult to put bleach into the fresh water tank but not impossible. There will be a pump that draws fresh water out of the tank. You can disconnect the input and output lines. Connect the input line which comes from the fresh water tank to the output side of the pump. Then using a flexible line with a 1/2" pipe thread fitting, connect that to the input side of the pump. Put the loose end of the flexible line into a gallon of bleach and turn the pump on. It will draw the bleach out of the container and pump it into the fresh water holding tank. Now return the plumbing of the pump back to the original configuration. Using the valve system complete filling the fresh water tank with fresh water and allow to sit for a couple of days. Then open the low point drain on the fresh water tank and completely drain. When the coach is not in use make sure the tank is completely drained. There is also a fresh water treatment that you can purchase at your local rv parts department.

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1 Answer

Working pressure


Putting 60 lbs. of pressure in the pressure tank is not the answer.

First determine that the pump is working correctly, Open the drain valve and see if you get a good flow of water. If you do then OK, the pump is working. If you are not getting a good water flow from the drain valve, then the pump is not operating correctly - maybe a bad foot valve. Next open the drain valve and watch the water pressure gauge, and note at what pressure the pump kicks on ( that's the cut-in pressure), and when it kicks off ( that's the cut-out pressure). Most pumps are set to operate at 20-40 psi, or 30-50 psi. The cut-in and cut-out pressure is set by the water pressure switch.The pressure in the water tank has to be set 2 psi BELOW the cut-in pressure of the pump. That is, if the pump has a 20-40 psi differential, then the tank has to be pre-charged to 18 psi.

To pre- charge the pressure tank , the pump has to be shut off. The Tank needs to be emptied (drained ) of water. The air pressure is then set to 2 psi BELOW the cut-in pressure. If water escapes from the air valve, the bladder in the tank is ruptured, and a new tank needs to be installed.

So, first make sure the pump is working.
I WOULD RELIEVE MOST OF THE PRESSURE IN THE PRESSURE TANK TO ABOUT 20 PSI BEFORE CHECKING THE PUMP, AND PRCEEDING WITH THE PRE-CHARGE OF THE TANK.

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1 Answer

No water pressure and we just put in a new pressure tank and pump


Hi j_rodrigues5
Make sure you have about 1/4 of the tank with air...it acts as a cushion and ensures that the pressure pump will turn on and off as needed.
Bud

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2 Answers

When turned on ,pump runs for about 8 to 10 sec. stops,then starts back up then repeats as long as water is on


You have a waterlogged pressure tank. To fix this problem, follow these steps:

1. Determine your cut in pressure by looking at the pressure gauge and seeing when the pump turns on.

2. Shut off the electric to the pump and shut off the main water to the house.

3. Drain the water from the pressure tank completely. You can do this by opening the drain at the bottom the the pressure tank.

4. With a air compressor and tire gauge (don't use pressure gauge on the pump) put enough pressure in the tank so that it is two psi less than the cut in pressure. So if your pump turns on at 30 psi, put 28 psi in the tank.

5. Turn the power back on to the pump and let it run till it shuts off.

6. Turn the water back on to the house.

7. This should fix the problem. If it does not, the bladder in the pressure tank is bad and the whole tank needs to be replaced.

This is a general fix without knowing your make and model of pump or pressure tank. This is a universal way of fixing this problem.

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1 Answer

My 3/4 hp shuts off and on roughly every 2 or 3 seconds when using. i pumped some air into the pressure tank and it worked much better. but i pumped in a little more and now its every second. i'm...


The switch is not the problem. The problem is the pressure tank. I am assuming you have a captive air tank with a bladder in it. The air pressure in the tank needs to be 2 lbs below the turn on pressure. Heres how to acheive that. Look at the pressure gauge on the pump and determine what pressure the pump is turning on. Next, turn the pump off and drain the pressure tank, then shut off the water to the whole house. If the pressure tank does not drain all the way, then you have a problem with the bladder in the tank. Once the tank is drained put the required amount of air in the tank. (if the pump turned on at 30 psi, then put 28 psi in the tank and if the pump turned on at 20, then put 18 psi in the tank) Check it with a tire gauge to confirm. Now turn the pump back on and see how it does. If done properly, your problem should be fixed. If it is a bad bladder, you will have to buy a new pressure tank.

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1 Answer

When adding air to a pressure water pump ,i


Sounds like the bladder is gone or inproper air pressure in water storage tank.

Bladder goes bad check it out with step 1
1-
One way to check for sure with everything hooked up. The air valve on top of the tank if pressed you will get water out of the valve which should be only air. This will let you know it should replaced.

If Tank bladder is low in air and not water coming out.

2-If it checks ok put an air gauge to tank to check the air pressure, with a standard 40 gal tank you will have 28 psi of air in tank for it to function properly.

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