Question about Craftsman 3 gal. Air Compressor, 1.5 hp, Horizontal k

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Psi will not go above 40 psi tank presuure will not go above 20ps

I have replaced the check valve

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  • larrdental Jun 27, 2009

    for davidpsr keeps running never gets to full pressure!!

  • David Mcintosh
    David Mcintosh May 11, 2010

    Does the compressor cycle off prematurely, or keep running yet never gets up to full pressure?

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Chech air filters for restrictions if not compressor internal parts worn!!!Good Luck to You!!!!

Posted on Jun 27, 2009

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I am having the same problem with my craftsman 919-154010 And my problem is a broke flapper valve sad part is that they no longer make the replacement part i need pull the head off and you should see it. hope this helps.

Posted on Jul 03, 2009

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1 Answer

WX-203 146S30, 32 Gal WELL-X-TROL Well Tank Stand low pressure upstairs


There is a schraeder valve at the top of the tank. Check the air pressure with a tire gauge. It should be two psi lower that the cut in pressure. eg: If you have a 40/60 pressure switch, the tank should read 38 psi.If it is lower, charge it up with air. If it loses the air again, the tank needs to be replaced. The gauge at the tank is rarely accurate so I would an outside sillcock pressure gauge to determine your system pressure so you can set the tank pressure properly. Good luck!

Apr 25, 2017 | Water Heaters

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Can a 3/4 horsepower jet pump be operated at a 40/60 psi configuration?


Yes. First raise your tank pressure to 38 psi, then raise your cut-in pressure on the press switch to 40 psi. Don't forget to adjust the cut-off up to 60 psi. There is a schrader valve(tire valve) on the top of your tank where you can fill it and measure the press with a tire gauge. CHANGE TANK PRESS FIRST.

Feb 22, 2017 | Jet Plumbing

1 Answer

With only one adjustment *****, can't figure out how to adjust cut-in and cut-out levels.


There is only one adjustment screw because it has a fixed differential. A 20 lb differential is standard. I recommend a 40-60 pressure setting which gives you an average water press of 500 psi. With a 40 cut-in, your tank pressure should be set at 38 psi. There is a schrader valve at the top of the tank. Use a tire gauge to set it at 38 psi. Do that first. Now set your press switch by running water and observing at what pressure the pump kicks in at. Don't worry about the cut-out pressure. It's trial and error.
Let the pressure build up above 45 psi and then run water until you hear the pump kick on. Keep doing this until the pump kicks on at 40 psi. It may take a few tries, so I recommend having someone else turning the water on and off for you.

Apr 14, 2016 | Plumbing

1 Answer

My 5 year old compressor runs continuously and only reaches 40 psi


The pressure hose is not leaking on the connections between tank and cilinder the pressure unloader underside on the pressure switch with little blue or black little hose is closed (not blowing air out ) if the compressor is running? and is the check valve on the tank not dirty inside ?? if the pressure unloader or connections are definitely not leaking.
A little piece shard of the membrane plate(s) thats insite the head of the pressure cilinder is broken and is inserted in the black rubber of the check valve .
More possibilitys the pressure switch itself. the insite diaphragm membran has a problem replace always the whole pressure switch if its defekt.


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Oct 14, 2015 | Psi Air Tools & Compressors

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.

May 24, 2014 | Plumbing

1 Answer

I have a new 1 hp utiltech pump and a new. Precharged tank with 34 psi in it now. When i prime the pump the pressure goes right to 25 psi and i can hear some water moving . When i open the shut off valve...


The 34 psi of the pressure tank sounds high, but it depends on what the cut-in pressure is set at in the pump pressure switch. Typically the pressure switch is for 20-40 psi or 30-50 psi. To establish what the pre-charge of tank should be , you need to establish what the pressure switch setting are (i.e 20 - 40 psi , etc.) Run the water and watch the pressure gauge and note at what pressure the pump comes on. The pressure tank needs to be pre charged 2 -4 psi below that cut-in pressure. So if the cut-in pressure is say 30 psi, then the tank needs to be pre charged to 28 psi.
To pre charge the pressure tank, turn the pump off. Drain the pressure tank of water to relieve all pressure in the tank. Then check the pressure of the tank at the air valve. Set the pressure to 2 psi below what the cut-in pressure is.
If you adjust the pressure switch, say from 20-40 to 30-50, you will need to go through the procedure of re adjusting the pressure in the tank. I hope this helps....

May 21, 2014 | Plumbing

1 Answer

Problem with pump?


The pump pressure switch should be checked to see what the ON-OFF pressure is set at. Typically the pressure switch is set for 20-40 psi, or 30-50 psi. The pressure tank should be purged as well. With the pump OFF, and the tank drained of water, the air valve on the tank should read approximately 2 psi below the "on pressure". So if the system operates at 20-40, the tank should be pre-charged to 18 psi. If water escapes from the air valve, the internal bladder in the tank is ruptured, and the tank needs to be replaced. A tire air gauge is used to measure the pressure in the tank after the water is emptied from the tank.. A tire air pump or a compressor is used to charge the tank. if a compressor is used, be careful not to over-inflate the tank, as this may cuase the bladder to rupture.

Apr 14, 2014 | Utilitech Plumbing

1 Answer

My sand point well the water stops and starts again


You probably need to purge the pressure tank.
Well Pressure Tank Installation Instructions

Pressure tanks lose their Pre Charge pressure and have to be serviced. The well Pump needs to OFF. The Pressure tank needs to be emptied of water. There should be an air valve on the tank. Check the pressure .If this is a Bladder tank and Water comes out of the air valve- then the bladder is broken and the tank needs to be replaced. The Pre Charge pressure is set to 2 psi Below the cut-in pressure set by the pressure switch. If your system operates at 20-40 psi, The Pre Charge pressure will be 18 psi. Hope this helps.....

Mar 18, 2014 | Bur-Cam Pumps 750896 Water Shallow Well...

1 Answer

Culligan AC-30 Tank not Filling and Recharge only produces minimal water.


You should change filters and membrane and then proceed. Replace both filters not one. You mat to buy new RO unit that you can find filters on line ie store (less than you are going to pay for Culligan) PROCEDURE FOR RECHARGING REVERSE OSMOSIS BLADDER TANK WITH AIR
When you turn on the faucet you notice low water pressure from the storage tank and only a quick burst of water come out of the system, and it dies down to trickles. Is the tank defective, i.e., bladder has hole and not functioning properly? Perhaps.

If you have the above problem and the tank is heavy (full), then try to relief the pressure from the air valve on the tank side. Is water coming out? If the answer is yes, then the bladder has hole and is defective, and tank replacement is due. If air comes out then it is possible that the air needs to be recharged.

Notes on bladder tank, please continue reading:

RO Tank useful life is 5-7 years. If the tank has been serving you for that long it is possible that the bladder had a hole and that tank replacement is due. If the tank is not that old, it is worth it to evaluate it for air pressure. In an empty tank, air pressure should be 7-10 psi. In a full/heavy tank, air pressure should be 30-40 psi. To be accurate, air pressure should be 2/3 of incoming water pressure. When the tank is full, and if feed water pressure to the RO system is 60 psi, then a full tank should have 40 psi. The RO tank has a bladder inside, and this bladder separates air from water. On the lower side of the tank is the air valve which is connected to the compressed air chamber. The top water inlet/outlet port (where the tank valve is mounted) is connected to the pure water chamber. So, when you turn on the faucet, the compressed air would squeeze or compress the bladder to force the water out of the tank.

You do not want to believe the tank is useless and want to do extra testing? If your answer is yes, please continue reading.

TOOLS NEEDED FOR TESTING:

1. An air compressor or air pump (like a bicycle tire air pump)

2. An air pressure gauge that is able to read less than 10 psi, and

3. Adjustable wrench.

STEPS:

1. Shut off the water supply to the RO system

2. Turn on the faucet to allow water to run until it stops.

3. Check to see if there is still water in the storage tank by lifting the tank. If the tank feels heavy, that means you need to recharge the tank and continue the following steps. If the tank feels light, that means you don't need to charge your storage tank at this moment.

4. Locate the air valve on the side of the tank. It looks like the air valve on tires.

5. Use air compressor or air pump to pump air into the tank. Keep the faucet on while pumping air, so that all water inside the tank can be purged out.

6. After all water has been drained from the tank, use an air pressure gauge to check the tank pressure.

7. The tank should have 7 psi of pressure when it's empty. Add or purge air if necessary.

8. Turn the feed water valve back on, and turn off the faucet to allow refilling of the tank.

9. finished.

What if the tank does not hold pressure and you see the same problem again? Bladder is out and you need to replace the tank.

May 01, 2017 | Tools & Hardware - Others

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