insp79
Well-Known Member
Just finished building my cooler tun. The manifold is made from 1/2" copper. Instead of cutting slots, I drilled 1/16th" holes 1/4" apart on the bottom half of each tube. It is installed in a 50qt. Coleman cooler with a stainless ball valve.
I have never brewed an all-grain batch. How can I predict my efficiency using the drilled manifold?
Please comment about my Mash Tun.
![180410_1679466300554_1054415164_31682966_2560173_n.jpg](https://proxy.imagearchive.com/e3f/e3f6148e2ff6365bb4b8ed040a3341f4.jpg)
![180410_1679466220552_1054415164_31682964_4270636_n.jpg](https://proxy.imagearchive.com/56f/56fabd4df044ba3f2bb353b113226e91.jpg)
![180410_1679466260553_1054415164_31682965_4620474_n.jpg](https://proxy.imagearchive.com/04c/04cf06db1eaacbd254f9fff99f6fe97b.jpg)
![180410_1679466180551_1054415164_31682963_2959219_n.jpg](https://proxy.imagearchive.com/a01/a01a91a1f38e512763d8774d069a5ad5.jpg)
![180410_1679466340555_1054415164_31682967_4075679_n.jpg](https://proxy.imagearchive.com/d85/d85c7ccaff5fea1edda5cfe45b034473.jpg)
I have never brewed an all-grain batch. How can I predict my efficiency using the drilled manifold?
Please comment about my Mash Tun.