Chlorhexidine is deactivated by any organic matter. Failure to properly clean with soap and water and rinse completely after makes the disinfectant useless. Incorrect use of disinfectants creates resistant bacteria and virus.
From the instructions
1. Remove all animals and feed from premises, vehicles and other equipment.
2. Remove all litter and manure from floors, walls and surfaces of barns, pens, stalls, chutes and other facilities and
fixtures occupied or traversed by animals.
3. Empty all troughs, racks and other feeding and watering appliances.
4. Thoroughly clean all surfaces with soap or detergent and rinse with water.
5. Saturate all surfaces with the recommended disinfecting solution for a period of 10 minutes.
...
Step 4 cannot be skipped just because it takes more effort.
Complete instructions, take a moment and read them contact the tech support people if there are questions. Save future problems for everyone and follow the instructions of the manufacturer!
http://datasheets.scbt.com/sc-359873_mfr.pdf
Sent from my iPhone using Tapatalk