Here is the mill set up for cutting out the old partition.
Use a 1/2 inch end mill five inches long over all.
If anybody needs this done send me your pump housing and and I will
saw it off and mill out the partition. You will then need to make
a new partition out of 1/8 plate and weld it in. I can also make a 
1 1/2 inch OD hose hose barb for you cut at the required 25 degree angle.

It will be up to you to fit everything and weld or get it welded up.
 
Paul Lamar
 
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