That SLX stuff from Wal Mart works fine. Just get it out of the metal can after opening; put it in plastic or glass, the metal will sometimes form rust after the container is opened. You are correct that the 151 will not work. Actually if you are good in chemistry, you could make it work, as it contains too much water and that would need to be distilled out or appropriate amount of ether added to "even" it out.