Browns Ferry has no such device


-----Original Message-----
From: Aguilera, Roger [mailto:raaguil...@stpegs.com] 
Sent: Wednesday, September 21, 2016 10:38 AM
To: powernet@HPSpowernet.org
Subject: [powernet] Floor Drain Devices

TVA External Message. Please use caution when opening.

Does anyone use devices in their floor drains that prevent positive air flow 
out of the drain but allows the drain to work as designed.

We at STP find particles around the floor drain due to positive air flow up 
through the drain

There are rubber check valves we are researching

Thanks Roger

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