If you used "distilled" water as recommended, you would not get the brown spitting. I have had my Rowenta for about 15 yrs. now & it still works fine with no spitting. I also empty out the water if I am not going to be using the iron for a while.
I was just out shopping with a friend yesterday & learned that you cannot use coupons to purchase irons at JoAnn's.
I believe you can use the 20% coupon at Bed Bath & Beyond. They have a good selection of irons in all price ranges.