Well, wasn't paying attention and swim ran short on NaOH. After the Al/Hg reaction swim found out that he only has enough lye to make a 20% NaOH (150g) solution instead of the needed 35%. This wouldn't be a problem except for the fact that swim's only local source for lye is closed today. Will swim be ok to use the 20% NaOH solution or should swim wait until he can get more.