After looking at various options I decided to have a go at Daab's mash tun for two reasons 1. I like the idea of being able to use large quantities of grain. 2. I am a tight Yorkshire git and I already had all the parts

so here it is in all its glory

and the false bottom

"She" has the lid put on and gets wrapped in 4 peices of plastic coated rockwool tank lagging and then has an old travel rug thrown over the lot.
I used "her" today to brew a light ale the mash started at 67C and 75 minutes later the mash was 66C.
The run off was dreamlike no sign of a stuck mash.
So I would like to say, you may call yourself Daft as a Brush but your ideas are genius

Thank you