Hello, I need some advice on fitting a linear drain, the shower section in 1400 x 800 and is to be screeded, what slope would would I need leading to the linear drain? Another way of putting it is, how much lower than the finished flo or level should the top of the drain sit?
A sensible amount. The water will run down with just a few mm. I generally do it so my bubble sits a mm or two over the line on my spirit level.