Posted: 26/02/2015 at 15:34
If it's that bad improve the drainage, that's your best chance of ridding yourself of the moss.
Perfect lawns are hard work, scarify spike, brush in sharp sand, reseed. It can take a year or two or more depending on what sort of ground you have. It's a labour of love or hate depending on your point of view.
Moss loves moisture and shade, so solve those problems before hiring a machine.