Can I use a six-inch coin without salt water?

According to the relevant data, it is not forbidden to use salt water when using six-inch coins, so it can be seen that salt water can be used.

Six coins: the method of calculating divination with three coins is called six coins. Shake the coin in two palms (6 times in theory, but it depends on the actual situation) and record it. The prediction of six hexagrams and eight diagrams originated from the Zhou Dynasty. Six hexagrams is a diviner who puts three copper coins in his hand, clasps his hands, thinks about the measured things, shakes his hands together, puts them in the divination tray, and throws them six times to form hexagrams. Ibu, then change. Combine the epigrams of the Book of Changes and the branches of time to predict the development process and results of things.