Mash Tun Improvement

I have had the usual problem of my mash tun breaking and it was replaced by MiniBrew quickly and at no cost. Another problem I had with the original type was that the screw-in valve sometimes was difficult to screw in enough and I received error messages from the machine and it would not continue the mash. On one occasion I also had a horrendous leak during mashing. ( Another reason for not brewing in the kitchen)

The replacement mash tun had an internal taper cut into the entrance of the threaded part- this allows the O ring to gently compress in its groove on the valve. What was happening before ( in the unmodified original model of tun) was that the O ring was being displaced as the valve was tightened.

For anyone with an original type of mash tun, I would recommend that they take some sandpaper, or a Dremmel drill and gently create an internal taper between the end of the hole  before the thread starts