Please help! Does IUI sperm wash effect pH?

Hello, I am wondering if there is much point to DH taking supplements of eating foods off the diet for people doing IUI since the sperm needs to be "washed" before the procedure.  Does anyone know if the wash effect the pH of the sperm one way or another?? Thanks very much.

you are correct, for iui only you can sway

Thank you for your reponse! I am wondering if you know if the wash specifically raises sperm pH?? ( If so, wouldn't it be better for him to have a lower pH to start with, if the wash raises it, or is there really no point?)  Oh man, DH will be celebrating when he hears he doesn't need to go on that diet any more.....LOL

sperm doesnt have pH, semen does. and they wash that away