Or if you prefer, here's a gimmicky one that I built for about $5 using cpvc. I use it for the recirculation return, as a sparge arm and for the return again when whirlpool chilling with a pump. It's fully adjustable vertically for various batch sizes:
Shown here testing it intially with only water:
And this for the recirculation return while mashing:
A close up of the 90's attached to the ends. These are not glued on and can be rotated as desired for the swirl effect:
It's cheap, effective and very easy to build. Works for me.
I built my manifold and sparge arm out of cpvc. Both in 45 mins for less than $20. Its a simple bar with holes drilled into and the ends capped. Used it last night for the first time. I was able to walk away for an hour or so.
Like the tin plate and aluminum foil guys above, I go simple too... plastic pitcher for the hot liquor and a wooden spoon to diffuse it over. My MLT is big enough to hold all of my sparge water, so once I start runoff, I begin putting the sparge on top of the grain bed. Get it all in in 10 minutes or less and don't have to worry about it.
"Why did you.... what was the point of... how drunk were you when you decided this was a good idea?" - DMartin