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Old 02-08-2014, 12:38 PM   #1
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Valve above expansion tank is leaking


So I came home today and my garage smelled a little funny. I went and checked out the boiler and it was wet under m expansion tank. There is this tube shaped piece with a valve on top that is about the size of a tire stem valve. It looks like it leaking out of that. The screw on top was not tight but either way if I tightened it or not it still leaking a little. I did not leave it tight because it was not tight when I looked at it at first. It's not a nut but more like an aircap but with a hole it in. Please see pictures. So my concern is do I need someone to come fix this right away? Can I fix it myself? Why is it doing it? etc. The pressure on my boiler never goes over 20psi.

Here are some pictures




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Old 02-08-2014, 04:14 PM   #2
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Valve above expansion tank is leaking


Its an air vent. Dirt has gotten to it. You an replace it yourself. Need to reduce boiler pressure to zero to do it.

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Old 02-08-2014, 05:45 PM   #3
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Valve above expansion tank is leaking


Copied from OP #1 to read in its entirety.
************************************************** ***

So I came home today and my garage smelled a little funny. I went and checked out the boiler and it was wet under m expansion tank. There is this tube shaped piece with a valve on top that is about the size of a tire stem valve. It looks like it leaking out of that. The screw on top was not tight but either way if I tightened it or not it still leaking a little. I did not leave it tight because it was not tight when I looked at it at first. It's not a nut but more like an aircap but with a hole it in. Please see pictures. So my concern is do I need someone to come fix this right away? Can I fix it myself? Why is it doing it? etc. The pressure on my boiler never goes over 20psi.

Here are some pictures
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Old 02-08-2014, 06:56 PM   #4
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Valve above expansion tank is leaking


Quote:
Originally Posted by Fairview View Post
Copied from OP #1 to read in its entirety.
************************************************** ***

So I came home today and my garage smelled a little funny. I went and checked out the boiler and it was wet under m expansion tank. There is this tube shaped piece with a valve on top that is about the size of a tire stem valve. It looks like it leaking out of that. The screw on top was not tight but either way if I tightened it or not it still leaking a little. I did not leave it tight because it was not tight when I looked at it at first. It's not a nut but more like an aircap but with a hole it in. Please see pictures. So my concern is do I need someone to come fix this right away? Can I fix it myself? Why is it doing it? etc. The pressure on my boiler never goes over 20psi.

Here are some pictures

And??
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