To combat moss in my lawn on clay/chalk soil, I propose to aerate (by renting a power aerator) and dress with sand. What sand should I specify? Will sharp sand from builders' merchant be satisfactory?
What rate of application should I use?
I have to install a wc that will require a soil pipe with 3 right-angle bends within approx 1 metre to connect to sewer. Is it likely that there will be a problem with flushing?