Pure Bio-Clean Solutions which sells on Amazon might be a cheaper alternative to M9 drops. I bought them for the first time about 3 months ago and it was a dismal failure, so I gave them feedback that expressed how much of failure their drops were.
Imagine my surprise when they wrote back that they were changing the formula and were going to send me another bottle to see if it worked.
2nd bottle was marginally better and I wrote back with suggestions for improvement. They adjusted their formula more and just sent a 3rd bottle.
I'll let you all know how this 3rd bottle goes. The last change was pretty good, but when I did my morning emptying after an overnight it was stinky.. not horrendously so, but I would rather not cough and make faces while emptying my bag in the morning.... before coffee. (laughs)
Imagine my surprise when they wrote back that they were changing the formula and were going to send me another bottle to see if it worked.
2nd bottle was marginally better and I wrote back with suggestions for improvement. They adjusted their formula more and just sent a 3rd bottle.
I'll let you all know how this 3rd bottle goes. The last change was pretty good, but when I did my morning emptying after an overnight it was stinky.. not horrendously so, but I would rather not cough and make faces while emptying my bag in the morning.... before coffee. (laughs)