adamells
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Hi, I've found several questions answered on these forums over the last few months but time to ask a quick question.
I work in a new 10,000 sq ft. building that's basically a warehouse with a raised floor (for data center/call center use). For now I'm the only one in the building. Not long after I shut down the A/C system for the winter I started to notice a funky smell - at first I was afraid something died under the floor and I'd never find it, but eventually I found the cause: The building is extremely airtight (and no openable windows) and if the building develops any sort of negative pressure, as small as the bathroom fan running in the opposite end of the building, air comes in from the sanitary vent stack through a floor drain under my office.
I'm nearly certain there's no trap in that drain, and I've poured a few gallons of water down in case it just evaporated - no such luck. Since the building has already been signed-off on, the contractor doesn't seem interested in replacing it, so we will have to have it jackhammered and replaced at some point I suppose, but we'll need a little more cash flow before I can do that. In the meantime, is there a small fan assembly I can slip onto the vent on the roof (which is easily accessible) to ensure outward flow? I'm worried a check valve would simply stay shut all the time (if the building is "usually" negative) and defeat the purpose of having a vent.
Any ideas or suggestions?
I work in a new 10,000 sq ft. building that's basically a warehouse with a raised floor (for data center/call center use). For now I'm the only one in the building. Not long after I shut down the A/C system for the winter I started to notice a funky smell - at first I was afraid something died under the floor and I'd never find it, but eventually I found the cause: The building is extremely airtight (and no openable windows) and if the building develops any sort of negative pressure, as small as the bathroom fan running in the opposite end of the building, air comes in from the sanitary vent stack through a floor drain under my office.
I'm nearly certain there's no trap in that drain, and I've poured a few gallons of water down in case it just evaporated - no such luck. Since the building has already been signed-off on, the contractor doesn't seem interested in replacing it, so we will have to have it jackhammered and replaced at some point I suppose, but we'll need a little more cash flow before I can do that. In the meantime, is there a small fan assembly I can slip onto the vent on the roof (which is easily accessible) to ensure outward flow? I'm worried a check valve would simply stay shut all the time (if the building is "usually" negative) and defeat the purpose of having a vent.
Any ideas or suggestions?