Mine aren't in yet, but hopefully will be in the next week or so, I got my linear gullies from a polish manufacturer for +/- 150 EUR (depending on length), Delivery took a week.    http://www.kratkisci...w-wody,641.html   They're relatively good quality, with an  integral stainless steel trap and vertical, Dia 50mm, drain connection:     Mine are going into a passive slab. I've run 110mm pipe vertically up through the EPS and have terminated this wi