How do you lay a floor to drain please? Having real problems in a 4mx2.5m room, not helped by having a solar battery in there on one wall at floor level, so it mist slope away from that! Is this something I can do. Rephrase that, is this something the competent person can do as a DIY project. Whether I can do it is a different matter!
What's the technique/materials needed?
What's the technique/materials needed?
