1. Sanitise the FV
2. 2 tins in boiling water for 5 mins to soften the mixture
3. Add the contents to the FV
4. Swill out the residue with boiling water
5. 4 pints of boiling water
6. Topped up to 20 Ltrs with cold water
7. Give the mixture a good thrashing
8. Add the yeast.
9. Put the lid on and the airlock.
10. Check back in 24 hrs to see if it has started bubbling.
After 24 hours there was NO activity. I was a bit concerned about this as usually there is some activity by then (and with Coopers kits it's usually at the pyroclastic stage

I had 3 theories as to why this might be.
1. I had forgotten to re-hydrate the yeast, just chucked in it (not usually necessary, but with Wherry I think you are supposed to).
2. FV temp to low.
3. Yeast not working (dead ?).
I decided to do the following.
1. Move the FV to the airing cupboard (bit warmer).
2. Add some yeast from an earlier Coopers Batch that I had frozen into an ice cube.
Bottom line is that 24 hrs later it is bubbling away quite happily.
Anybody got any ideas on this ? Did I do the right thing ?