For the Guteneers, this is what I do, you don't have to do the same or agree just some ideas.
I made a video of the emptying if I can load it I shall.
Brewing a 23 litre batch of Best Bitter no sparge method.
View attachment 113585 Helix coil in position
View attachment 113586 32 litres of liquor, the silicone tube is to prevent an exodus of grain through the handle holes, the bazooka is mounted on the top of the overflow pipe.
View attachment 113587 End of mash.
View attachment 113588 The bazooka with some silicone tube inserted on the inside, this means the liquor has to go over the top of the tube though I haven't found any difference in pre boil gravity using the overflow and not..