Re: Does a Sump Pump Have to be Vented?

On 28 Nov 2003 15:16:27 -0800, [EMAIL PROTECTED] (BAN) wrote:

>I am in the process of finishing my basement.  I have a sump pump in
>one corner with a discharge pipe (going to the storm drain).  There is
>also a vent pipe which is simply a run of open PVC going from the sump
>pit to the outside.  If I put my hand over the vent pipe, there is
>positive pressure (i.e., cold air is coming in from outside).
>
>The sump pump pit will actually be on the inside of a finished room
>with a removable platform over the top (serving as an end table). 
>[Note: This has already passed inspection].
>
>I noticed today, that the vent pipe is very wet as the humid air
>condenses on the pipe.  This is a problem as this pipe is about to be
>closed up behind drywall.
>
>Is a vent pipe typically required for a sump pump?  If so, what is the
>best way to control the condensation problem?
>
>I know I need to check my local building codes, but I am interested in
>any preliminary comments or recommendations.
>
>Thanks

It's possible that the vent tube was installed due to the presense of radon gas
from under the foundation. The sump represents a breach in the slab. I think you
need to either find out who put the vent there, and ask them, or else have a
radon test done. It's not something to "guess" about.

BB