Leggle manifold

i have a feeling the question you're asking isn't exactly what you've stated...so i'll answer the question and what i'm inferring.

Can I solder the joints? Yes, you can solder copper

I'm wondering if you're curious as to whether soldering is the way to go with this being a brewing application? If thats the case....
If the fear is lead from the solder you can always use a lead-free solder.
The solder joints should be on the outside of the pipe, so there should not be any solder/water contact.

Of course another option would be to use PVC or even PEX.

Is this for a sparge arm?

 

My copper manifold holds together without crimping. I do try to be careful when mash-stirring, but I've never pulled it apart while it was in the mash. Plus, it's easy to clean as I can take it fully apart.

 

similar to ljkeats, i've soldered I think half of the joints to minimize the # of pieces to pull apart & put together, but have made sure that I can pull apart for cleaning purposes. No crimping and have never had it pull apart on me.

 

A manifold in a direct heated MLT? how are you going to avoid the scorching of grain?

 

Yeah, could be problematic unless we're missing something. The only way to avoid scorching would be to stir like hell but, with a manifold vs false bottom, you're going to get grain stuck on the bottom that won't move. That will definitely result in scorching.

Also, the need to stir also presents the need to solder the manifold completely since a pressure-fit manifold would most certainly come apart from all that stirring.