How to increase PH of demi water

[phan_duong05h5]

Dear All,
Our Demi plant SAC, degasifier SBA, MB is performing well in conductivity (ranges from 0.1 to 0.6),
But the pH of mixed bed outlet is 5.7. Our client insists to use DM water with pH 6-6.5 to manufacture their product.
Anything can be done to boost pH from 5.7 to 6.2 without adding additives?

[belhada6]

By stripping the CO2, you can increase the pH at the level you want.