[Rangerkris]

How much do you put down i can get as much as i need and wonder how deep a layer it should go down onto the bed, it is already well rotted.

[beansticks]

2 to 3 inches thick,evenly spread is what i aim for.It is possible to make your soil too acidic.

[Terrier]

If it's well rotted, put some in a pot and sow a few peas in it. If they grow then OK, if they look stunted or die off when they germinate, don't use it. There's been a lot of trouble using manure because of residues from industrial chemicals sprayed onto the land. On a lighter note, I've used so much horse manure on my plot over the years, it must be mostly manure by now and stuff still grows in it. When I checked the Ph of the soil at the beginning of this season, there was very little difference between my soil and a grow bag. Standard practice for growing squash / courgettes is to dig a hole, fill it full of manure and plant into it, so don't use it all up as mulch. 

[Trillium]

If you're worried about increased acidity with manure, then throw on some ground limestone at the same time. Should mostly even things out.

[Rangerkris]

Thanks peep's

[shay]

I too have loads of manure however moving it is difficult, do I need to somehow declump it all or are the parts which are clumped no problem as they will still do their job? Plus do I test the soil pre manure or do I test it after winter?

[Terrier]

If you're worried about increased acidity with manure, then throw on some ground limestone at the same time. Should mostly even things out.

It's  not a good idea to use lime at the same time as manure as a chemical reaction between them can release nitrogen from the soil. Most veg likes a slightly acid soil anyway. Brassicas can be limed as they're growing by sprinkling it around the plants taking care not to let the lime touch the plant.
Shay, I would manure in the winter when you are not growing in it and Ph test it in spring. If you think it requires lime then do it a few weeks before planting.