Ale, Beer, Stout appreciation

It's come out at 1.056, which is too high (pre-boil was 1.034). I'm boiling some water and leaving it to cool to bring it down to about 1.048.

Managed to evaporate 3L of wort during the boil.

Chill some hot wort now to get an idea of efficiency / OG.

After using Brewers Friend the efficiency is:

Conversion 58.97%
Pre-boil 49.85%
Kettle 61.81%

and after topping up with water to bring the wort back up to 9L for an expected 5% beer

Brewhouse Efficiency 83.88%

So I need to look at sparging the grains to extract more sugars. Luckily I have a coolbox that can be converted to a mash tun.

I'm also going to need a 15L pot instead of a 12L I think.