First water test and it looks good. This is only with about 10cm head between the HLT and the top of the cool box mash tun

I will have to see how it copes with slower water rates when I use it in anger for the first time in about an hour.

I previously showed you a water test of the sparge arm,

Here is it in use properly for actual sparging. Along with a look at what it looks like when it’s going a bit faster.

Full details of how to make it are available on my blog https://daftcatbrewing.com/making-a-sparge-arm-for-a-28l-thermos-coolbox-mash-tun/