MegaSack DRAW - This year's winner is user - rgwb
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Had turf layed last summer on a nicely rolled and prepared soil base. It settled a fair bit and could probably do with some rolling in early spring to get rid of some of the lumps and bumps. Is one of those water filled jobs good enough? or are they just for seeding duties? Do I need something more substantial?
Rolling doesn't get rid of lumps & bumps - it'll flatten out areas that have been lifted by frost or suchlike but it's really just a tool to firm up a surface.
You need old fashioned top dressing for the little bumps, or for anything big lift a bit of turf and excavate/fill as necessary (then roll the lawn to firm up the fresh bits).
cheers. I reckon I'll leave it lumpy then! otherwise it looks healthy.