There are a lot of tumblers that swear by Borax. I have tried it and wasn’t a fan. I tried numerous times to mix it with water before adding to barrel to get it to disintegrate a bit but didn’t have luck. Usually it ends up sticking together and turning into a hard cement in the barrel. I use Myers dish soap and it seems to do a good job.
There are a lot of tumblers that swear by Borax. I have tried it and wasn’t a fan. I tried numerous times to mix it with water before adding to barrel to get it to disintegrate a bit but didn’t have luck. Usually it ends up sticking together and turning into a hard cement in the barrel. I use Myers dish soap and it seems to do a good job.