Great info and I plan to share in my Guild newsletter. We live in Midwest with very "hard" water--for those of you that don't live with this type of water---the mineral build-up is incredible. I used to use distilled water--what I grew up doing. But more recent irons (I always buy cheap due to our water hardness)say to use tap water. So I'll now use filtered water---I will say that with out "hard" water, I do occasionally use vinegar to flush out the sediments. I aways follow that up with a water flush--but will need rethink that too.