I got the idea from Wheeler and as I recall it used to work ok although there was a fair of dead space. If I did this it would be in the mash tun; not sure I will be able to find a bin exactly the right size but will look into it.guypettigrew wrote: ↑Mon Oct 08, 2018 8:26 am
Ah, the old 'Dave Line' approach! My very first mashes many decades ago were done in a double bucket system. Never really got on well with it. The inner bucket always got jammed inside the outer one. Then I moved onto a canvas bag with a mesh bottom. Can't for the life of me remember how I supported the mesh. But I do remember wrapping the bucket round with two layers of hot water tank insulation material. Then I moved on to the faithful cooler box with a slotted 'D' manifold.
The only stuck mashes I ever had were with the double bucket. I think I drilled the holes too large and some grain got through and blocked the tap. Can't really remember, though. It was way back in the late '70s!
None of this is any help to you, I know! Just a chance for me to reminisce.
Looking at your recent posts I see you top up the mash with water before running the wort off. Have you tried running the wort off at the end of the mash time before topping up with water? I'm just wondering if adding more water is stirring things up and causing it to clog before a proper filter bed of grain has formed on top of your false bottom.
I've never batch sparged, by the way, so probably don't know what I'm talking about!
Guy
Alternative is braid.
I have tried running off before toppong up. Did not not completely stick if I recall but v slow indeed