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Old 09-01-2017, 08:32 PM
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Kobalt K7060HFV drain plug

I have a Kobalt compressor and have been using it for quite sometime. I have a cheap water filter inline wear it comes through the wall into my shop. It collects a good bit of water, however I went to the bleed valve on the bottom of the tank and opened it, but nothing came out. When I say nothing I mean nothing, no water, no air, no nothing.
I noticed the valve on the bottom of the tank is not the same as the valve listed in the manual.
I can only think it is clogged or the valve is broken. It looks obvious that the original valve has been replaced by the type valve that has a lever you turn 90 degrees in order to turn it on or off.
This valve came apart when i tried to screw it out, the ball and shaft came out, but it still didn't leak. Should the remaining part of this valve screw out of the bottom of the tank or did I destroy the valve by trying to unscrew it from the tank.

Sorry for the length of this post but I wanted to explain the situation as best I could. Thank you for your time and advice.

Tom in SC
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Old 09-01-2017, 08:45 PM
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The remaining part of the valve should screw out....but it may take heat to do it as it is likely rusted in.

Rust formed over the bottom of the tank is the reason nothing comes out now, air compressors are bad for this unless drained on a daily basis. Even after you get the valve casing out, you may have to poke through the rust in the tank to make it drain. Best do it with no or very low (20 psi) pressure in the tank and safety glasses ON.
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Old 09-02-2017, 07:45 AM
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Thanks for the reply. I was able to turn the valve less than 90 degrees before it stopped and I got nervous. I wasn't sure if it was even suppose to turn. Now that i know it does screw in I will put some PB Blaster on it and see if that will help. Right now it doesn't leak and I am concerned I will mess that up. Thanks again for your help, any further advice is welcome.

Tom
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Old 09-05-2017, 06:24 PM
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I sprayed it with PB Blaster Saturday but didnt have time to work on it until today. I was able to screw it out, but had to tap a small nail through the rust and about 2 qts of water came out. I will be getting some fitting to make draining it easier in the future. Thanks for the advice.

tcoop in SC
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Old 09-05-2017, 08:04 PM
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Make sure to try to get as big a hole as you can poked through the rust, as a small hole will try to close back over sooner than you think.

Glad you got it squared away.
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tcoop (09-06-2017)
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Old 09-06-2017, 09:20 AM
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Want to make draining that tank easy...........

https://www.amazon.com/Compressor-Va.../dp/B00BBZGWIC

Think about one of these, no need to bend down to flip a valve., big rigs use them all the time for the air tanks.

Greg
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Old 09-06-2017, 04:11 PM
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Quote:
Originally Posted by ericnova72 View Post
Make sure to try to get as big a hole as you can poked through the rust, as a small hole will try to close back over sooner than you think.

Glad you got it squared away.
I did make the hole as big as I could. It is as big as the opening is on the tank. Thanks again
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Old 09-06-2017, 04:13 PM
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Quote:
Originally Posted by rip-tide View Post
Want to make draining that tank easy...........

https://www.amazon.com/Compressor-Va.../dp/B00BBZGWIC

Think about one of these, no need to bend down to flip a valve., big rigs use them all the time for the air tanks.

Greg
Thanks rip-tide, i will check it out.
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