[reefburnaby]

Hi,

The two (very) active ingredients are HCL and NaOH. These two solutions are in very high concentrations and they are very corrosive individually. However, if you carefully (slowly) mix the two chemicals together,

HCL + NaOH <=> NaCl + H2O

NaCl...or table salt (without the iodine), is corrosive too....especially to steel and stainless steel, but it it is relatively harmless in diluted form. Of course, this is assuming that there is equal amount of HCL and NaOH in the two solutions. If either solution is greater, then the unreacted portion of the solution will enter the water system.

So, it is relatively safe...other than concentrating all of the metals, phophates and silicate from 150 gallons in to 1 gallon of waste water.

- Victor.