Well....we just put the lid on pool for the winter....a sad sad day! I removed my cell to bring it in for the season and I noticed it's cracked inside, at least it sure looks like it to me! I was looking for scale, junk or anything else after rinsing it with the hose. On the side where the wire comes out the end, where the water enters the cell the side walls change from round to straight and go up inside the unit, it's cracked on both sides from the white part that holds the plates, diagonally up to the that transiton in the walls. I called hayward/goldine and they and going to send me a new cell, with an rma label for mine. They will inspect my cell, if it's ok they'll send it back, and I have to send back the new one they sent me. If mine is bad I just keep the new one and all's well. (Ya'll follow that mess...cause I'm lost! :-D ) They were very helpfull and nice to deal with on the phone....no questions asked! Has anyone seen this happen?....Otherwise keep an eye on your cell. I'll post back when I get an answer from goldline.