
Hygiene is EXTREMELY critical.

Always wear gloves

Do one teat at a time. Once you grab it don't let go until the process is finished.
Wipe by dragging a clean part of the wipe across the teat end like this.
Don’t scrub like this it just smears it and doesn’t disinfect it.

Pinch the top of the teat off like this. THIS IS SUPER IMPORTANT!! Seal needs to stay in the teat canal and not end up in the udder.
I prefer Cepralock as the short tip ( remove like this ) guarantees correct placement.
Partially insert the tube and apply seal like this ( with the short tip it’s actually impossible to insert the tube too far ). Push all the content into the teat canal ( you’ll also note there is no air in Cepralock to deal with ).
I then squeeze you fingers down towards the teat end until seal just appears.

Teat spray and identify cows.