Are there any confirmed test kits that can test low levels of phosphate in RO/DI water?
I want to soak some dry rock and watch the phosphate levels as it soaks in RO/DI water. I figured there’s no sense wasting salt if it can be avoided.
I want to soak some dry rock and watch the phosphate levels as it soaks in RO/DI water. I figured there’s no sense wasting salt if it can be avoided.