This is called the deep drill, a machine which is imported from the USA, a very, very specific machine.
We utilise it mainly on our cricket pitches. It’s got drills of 25 mm thickness. Also specific drill bits that go into the bully and we drill out – in other words we’ve got a bully exchange program – a soil exchange program.
This goes down as deep as we want to, about 300 mm, sometimes less, and we take out the old bully.
Bully is the clay which is used on the cricket pitch. It’s a specific makeup that’s very specific to a cricket pitch.
It binds and it gives you that hard, hard surface that you want, and also the grass can grow in it and bind it all together. What happens is, with the cricket pitch, it becomes root bound.
A lot of organic matter gets left behind, so it’s part of the bio-cycle, which, if it becomes too much you can’t compact it – it’s like jumping on an old koir mattress – as hard as you try, you cannot compact that.
So we take out that old root stock and we interfere with the biocycle down there, we put down fresh bully. So every year, and over a period of, say, 5 years, we’ve got a completely new pitch, which is much better, and it gives you all sorts of benefits.
The pitch will recover from this and in 3-4 weeks time it’s ready for the next season.
It’s in bags - we put it on and we work it in with flutes – flat squeegies, root squeegies – from the bully farm.
They dry it and they crush it and it comes in bags.
Once we’ve been through, we clear off all the old bully and then we empty the new bully on the top, and then work it in with flutes or your squeegie.
In effect you’ve got a stapling effect which keeps all your platelets together, and you’re introducing fresh bully.