Quilt soap from the lqs or Orvus Paste from the local grain elevator much cheaper then the lqs. I have had a lot of luck with it and it lasts a very long time. I am not sure but if you have a Tractor Supply store in your area you might want to check there. It is the same thing and comes in a large plastic container probably ten times more than what you get at the lqs and it runs about $19.00. It is used by farmers to wash horses and sheep from what I understand but is the same thing when you read the label.