Hi! I'm renovating a 70's house up here in Jämtland, and mostly because I can't get a good plumber I'm doing some of the work myself. I'm mostly just rebuilding, reinforcing, insulating and preparing the room for a builder to come in to waterproof and tile, but need to move the drain pipes a bit for the new layout. However, I've recently moved to Sweden, and I can't find any rules for pipe connections etc., just the ratio 1:100, or 1:150 for the flow, and a 60mm regulation for the distance to the wall in the wet room. I've bought some pieces of 110mm pipe from K-Bygg to attach to the current system, and the plan is in the picture. I think the big question is, is it okay how I plan to attach the 50mm drain to the end of the pipe, and is it okay to use some of the joint sleeves along the length? Thanks! Ol