Sand isn't what you should throw about as a top dressing - depending on whether your soil is heavy, loamy or sandy, top dressing mix consists of peat, loam and sand in varying ratios, so for heavy soils, you'd make a mix of 1 part peat, 2 parts loam and 4 parts sand (lime free), but for sandy soils it'd be 2 parts peat, 4 parts loam and 1 part sand. It isn't absolutely critical that you apply this - it makes for a healthier lawn long term, but just aerating and leaving is okay.

Sorry Bamboo, but I would disagree with you on this. The sand in the soil is washed down by rain and you need to replenish this as a top dressing. The idea of top dressing a lawn with sand after aerating it is to get fresh gritty material to the roots that has been washed down into the soil and encourage growth.

Nowt wrong with a different opinion Myron, but I should have given the reference for that information I gave, Hank - taken from D. G. Hessayon 'The Lawn Expert'.

Thanks B and M, for your replies. I'll be into it this weekend.