No distilled water in steam iron

[BobT]

This is what Rowetna says on its website:

The iron is spitting and leaking
First, check the water you use. DO NOT USE DISTILLED WATER. We recommend using tap water (up to 12 grains of hardness per gallon) or bottled spring water. If you change water, it may take several uses before your iron adjusts to the new mixture and the issue is corrected.