he washes it extra to fully make sure there is no bleach left over. if someone only wanted to rinse it once and take the chance, well then they can go for it. he is just being careful. thats not a pain. i personally bleach them, and then do only one long hand rinse out instead of multiple. although before i use, i rinse it again. not to get bleach out again and be safe, but because when its already wet, it adds weight to it, and when i put into filter sock holder, it sinks once it hits water. when its dry, i have to sit there and hold it under water to make it stretch out completely in place. other wise the bottom floats up or does not sit in place correctly until its in long enough