Thank you. I thought it might not be possible to remove the collar. I wash him at least twice a month, but as they say, it only reduces the effective period. It is an amazing idea with the slow release from the plastic and so much better than the pretty crude liquid spot method. Much of the liquid goes into the hair not the skin and makes the procedure very inefficient.
I really look forward to your test run, especially with a sample of three dogs
Good luck.