WEF Discussions — Now on LinkedIn!

WEF is pleased to announce the creation of free LinkedIn groups associated with its technical discussion forum topics. Through these LinkedIn groups, members will be able to view and participate in discussions, as well as communicate with one another via direct messages. Share your experiences and knowledge, ask questions and respond to other discussions as frequently as you like!

You must have a LinkedIn profile to join a LinkedIn group; you can create your profile here. If you already have a LinkedIn profile, all you need to do is submit a request to join one or all of the following groups:

Water Environment Federation (Main) | Biosolids | Collection Systems | Nutrients | Stormwater 
Utility Management | Water Reuse | Water for Jobs | Watershed Management | Laboratory Practices 

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tank numbering
Posted: Wednesday, May 25, 2011 10:15 AM
Joined: 5/25/2011
Posts: 1

I have not been on for sometime.  I do not know if this little issue ever has been raised. 

We have a debate going on in our treatment plant about the numbering of tanks.  Do you look at the flow coming toward you or going out to number the left tank(aeration tank for example) as 1 and the right tnak as 2 or the other way around ?  Does the U.S. EPA have any say about this ?

Posted: Sunday, June 26, 2011 1:22 PM

The way I am comfortable with is take into consideration which direction is north when the original drawings were done(facing north       

left to right for example left #1, right #2 etc.) and also use the blue prints and drawings to decide as the Electrical, Mechanical,Structural  drawings should show in some cases the equipment #s so there is no confusion when locking out equipment. Years ago there was a close call when the main disconnect was isolated for the wrong piece of equipment because the equipment was not labeled the same as the electrical drawings, an important lesson to be learned here follow the drawings.


regards, D.Mak