I just had a brief chat with my local hazardous waste facility about bringing in my used chemicals. So I finally got it down to where I can bring 30 gallons a day, which will maybe be my yearly dump. But anyway, my intention was to just mix all the chems forward, meaning a 5 gallon pail with have developer, stop, and fixer. They do not take the fixer for silver recover, all of it gets incinerated. Is there any other reason not to just mix it all? The way I understand it, is mixing it all will give the most neutral PH in the end. Is this correct?