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Hi! I have a compressor that leaks air on the bottom of the tank. I neglected to drain it during it's life time, so it got rusty at one spot and, when I pump air, it leaks. Is it repairable? Could any patch be welded, or something else?

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Due to the explosive ability of compressed air, I would not recommend any repairs to a compressor tank. It is possible to weld a patch on the rusty spot but the heat would weaken the rest of the tank and you could face a very dangerous explosion if the tank should fail at another spot. As an authorized service center, if I have to replace an air tank I have to drill holes in the old tank to render it useless and safe. Save yourself a huge nightmare and buy a new compressor.

Posted on Nov 08, 2010

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1 Answer

What causes air compressor to continue leaking air

A hose connection, such as a hose end coupler for
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Your compressor shouldn't run more than ten to fifteen minutes before shutting off. The pressure should be posted on the machine somewhere ( a decal usually says xxxpsi). You evidently have an air leak somewhere. On the bottom of the air tank there is a valve for draining the tank of air and any moisture. Make sure to close that valve by hand only (Screw it in all the way by hand and remember, you are working upside down, so don't get confused as to which way to turn it). If the valve will not unscrew to drain the tank, you can use a pliers to loosen the valve to let the air out, but be sure you are turning it in the correct direction or you'll break the drain valve!! Now that you have the drain valve closed, turn the compressor on and watch the pressure gauge. When the pressure gauge reads the pressure on the decal, the machine should turn off. If the pressure gauge stops climbing before it reaches the specified pressure, you have an air leak somewhere. You can either feel for the leak at the air line connectors by hand or mix a dish soap and water solution the pour on the air line connectors to look for the leak. Keep the soap solution away from the motor!! When you find the leak, drain the tank using the drain valve at the bottom of the tank, disconnect the hose coupling that is leaking and wrap Teflon tape around the threaded portion of the male end of the fitting (3 wraps should do it) and reconnect the coupling ( tighten it well). Close the drain valve and start the compressor again. and check all fittings for leaks again.

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My campbell 0.33 runs but won't built a pressure

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Jan 28, 2013 | Campbell Hausfeld 0.33 HP 2-Gallon 100 PSI...

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I have a 2 gallon compressor , no air comes out?

Check if air intake is clogged.
Check if drain valve on tank bottom is open or closed.
Look at pressure gauge and see if pressure is zero.
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1 Answer

Compressor runs and sounds ok, but it only manages to show 20 lbs. It will not build air pressure and continues to run.

check air tank drain valve located on bottom of tank, if it is not leaking try adjusting air pres regulator (large black knob close to air hose connection.) the knob when turned in will increase the tank air pressure, if knob wont turn check that lock ring on bottom of knob to make sure it is disengaged. also check for air leaks in all lines and connections

Apr 16, 2012 | Craftsman 1 hp Air Compressor, 4 gal. -...

1 Answer

Pressure of the air compressor does not go above 1 bar

Check for a fitting on the bottom or end of the tank. This fitting is used to drain air when not using the compressor for long periods, and should be left open most of the time. The biggest reason is that compressed air contains moisture...which will eventually rust your tank. Opening the fitting allows the water to drain out.

Since you have 1 bar, it's probably on, but loose.

Otherwise, feel for air leaks.You may try brushing on some water and dish soap...the leak will cause bubbles.

Good luck.

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Moisture is coming through my air compressor hose and into my airbrush gun, resulting in splats. if i press the gun for air moisture (water) still comes thru. when the gun was removes the moisture was felt...

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