Trouble being woken up by my alarm?
John, you're going to need to brake out some concrete around the stack to allow the bottom no-hub coupling to be partially below the slab. To make the cut on the cast iron below the slab, means you are going to need to brake out the entire 4 of concrete about 12 square (or round), remove the gravel and some dirt, just to get the tools in there to cut it. As a professional, I personally would just brake it out to make the connection below the slab, but it's your house and your call. The B-dry system typically consists of waterproofing panels on the walls and interior drain tile and a sump pump. So damaging the underslab drain tile is possible, but is also easily repaired if damaged. Good luck with the project
Synthetic resins are materials with similar properties to natural resins—viscous liquids capable of hardening. They are typically manufactured by esterification or soaping of organic compounds. The classic variety is epoxy resin, manufactured through polymerization-polyaddition or polycondensation reactions, used as a thermoset polymer for adhesives and composites. Epoxy resin is two times stronger than concrete, seamless and waterproof. As such it has been mainly in use for industrial flooring purposes since the 1960s. Since 2000, however, epoxy and polyurethane resins are used in interiors as well, mainly in Western Europe. One more category, which constitutes 75% of resins used, is unsaturated polyester resin. Ion exchange resin is another important class with application in water purification and catalysis of organic reactions. See also AT-10 Resin, melamine resin. Another synthetic polymer is also sometimes called by the same suffix, acetal resin. By contrast with the other synthetics, however, it has a simple chain structure with the repeat unit of form -[CH2O]-.