mash/sparge temps - check my math please

[kbuzz]

I am consistently losing anwhere from 3-5 during my mash and I'm working on that...but I'm also missing my sparge temps by roughly the same amount (I batch sparge). Would it make sense to add the amount that I lose during my mash to the temp of my sparge water in order to hit my target temp?

 

[Yooper]

I am consistently losing anwhere from 3-5 during my mash and I'm working on that...but I'm also missing my sparge temps by roughly the same amount (I batch sparge). Would it make sense to add the amount that I lose during my mash to the temp of my sparge water in order to hit my target temp?

Yes. I routinely use 202 degree water for my first batch sparge addition so that I hit 168 in the grain bed.