Stinky Drain Trough? Solution 2 Chlorine Tablets

 

The drain troughs behind your washers and inside your bulkheads are a great place for bacteria and mold to build up and leave your store with a funky smell. You would think that the amount of water that gets flushed through the trough it would keep them clean and you wouldn't have to worry.
For the most part that is true. Over time however things like floods, clogged drains causing backups, and garbage falling into them cause water to back up and get into places you wouldn't think about. 
Metal troughs also warp and rust over time causing pools of water to stand leaving deposits.

Solution number one to make sure you never have funky smells is to regularly clean your troughs of garbage and debris and sludge. The second way is to use chlorine tablets like those used to keep swimming pools clean. They are about the size of hockey pucks and can be bought wherever you get your pool supplies. After cleaning the trough toss a tablet into the trough. Over the course of a week or so the tablet will dissolve. This will help keep the drain trough free of bacteria and keep the smells away.