So I'm aware and have read that mixing 3a and 3b with 8l of RODI is possible, but not recommended because the 'highly concentrated' solution is hard on tubing. However, why not mix 3a and 3b into 18l of RODI, then just dose double the amount?
For those of us with only 3 dosing pumps...
For those of us with only 3 dosing pumps...