Quote Originally Posted by cleancloths
My understanding is that the Blue Diamond (and Pearl) use a bag that is rated at 2 microns while the Dolphin has a 20 microns bag. Thus, the water is going to look much cleaner with the BD/BP as many tiny particles that scatter light are being removed with the BD/BP.
Hard to believe. The BD bag is a thin, single layer. The Dolphin bag is triple layered.