i'm sorry but how many times i gotta say this ..... i'm NOT using a 2 part solution ... its a 1 part with 3 stages .... grow .... bloom & ripe all added to 3 DIFFERENT 5 gallon jugs .yes it is really that bad of an idea ....... its simple chemistry. two part nutes come in two different bottles for a reason. you should do some reading on mixing your own nutes, it won't take you to long to answer the why and the why nots. in high concentrations elements bond together ....... really
And ultimatly 2 part solutions ... diluted seperatly are added to the final solution (mix) anyways . diluted seperatly so the elements can work together .