Compared to Oatey 95/5, I will use it above. I've struggled a lot in recent years and felt the lead was lost on everything. The slightest amount of steam in a new product has a negative effect on the feeling of perspiration. This product seems to solve that problem. Used it on a few renovations around the house and had no problems compared to Oatey. It seemed to clean up better and more black crap was being pushed out of the old pipes.