I quit cloth over massive diaper rash, too. Tried boiling, bleaching, soaking in all kinds of potions. Creams, salves, ointments, medicated and natural.
I told people the rash had nothing to do with cloth : ... but right before I had my second baby, I let DH buy a pack of sposies for my toddler. The rash cleared up practically overnight. Case closed.
And I loved doing cloth, too. So sweet n fluffy.
Must be an area water issue. I've talked to other moms around...