Mash Tun issues

[RobinW]

My plan is to eventually do concentrated double batches. I have a pile of 15L cubes here.
I should have the boil space to do a 30L batch. 15L in the fermenter, then add 5L of water to temp plus yeast.
Then the other 15L in a cube for ron. Only got room in the fridge for one bucket.

Still need a couple more test runs including a clean up run to make sure I got all the connectors right.
That plate chiller is amazing. Pumped boiling water through it the other day, it came out cold to the touch.
Good ole Gumtree...

 

[RobinW]

Pumped 4 brews though so far and temp stability is no longer an issue.
Beer smith tells me 79% mash efficiency on the last brew but I still had volume issues.
I forgot to count losses in the chiller, almost 2 litres in that thing and it's so small.
Thanks to all for the help and prompting, I'm cooking now