Do not dissolve in HE washer
In an HE washer there is not enough water for these sheets to dissolve. I have tried different placement of the sheets and they leave residue on clothes or just stick to the drum every time. I have to re-rinse clothes or scrub sticky goo off of the washer drum with a scrub brush. They might be fine in a front loader or non-HE washer, but in a top loading HE they are a worthless mess