Now that we having running water in the house – and hot water no less, we decided it was high time to upgrade our grey water filtration system. Originally, we were granted planning permission after having a study completed of our land which ensured that it was suitable for a ‘Lit De Roseaux’, or reed bed system of filtration. The study outlined the exact measurements, tanks, locations and size of the filtration system. This was out of our reach in terms of cost and so we have essentially made a carbon copy of the system but utilising a different type of tank; namely a cast iron bath tub.