Same thing started happening here a few months ago! I actually thought it was mainly due to the fact I used to wash ever day or 2 but then due to less volume it was sometimes getting to three days, and thats when things really deteriorated. But yeah, my Cushie Tushies were the first to go, followed by Iishflys and my GF nappy Knickers lumped together and stuffed totally, and am getting the holey problem in my GF inserts too - the only thing that has held utterly strong has been the old style BBBamboo & Hemps! I agree with the potent wee theory though - DD2 seems to wee pure acid sometimes - she's only been part-time cloth since her first teeth appeared at 6 months because her wee gives her a rash - so think that was the clincher.

The only thing that has helped here that I've been doing with my new ones is rinsing them and leaving them soggy in the nappy bin - or putting them on a quick wash cycle at the end of the day and washing them properly the next day. But it is a massive pain in the butt. I seem to be using disposables more than my clothies these days