water addative to avoid corrosion

[joecontrol]

I have a Hot water system with a 304 Stainless exchanger in furnace flue (taking on heat) and a Parker boiler (to make up heat, not sure of exchanger material in this) and a titanium exchanger (give off heat) in a tank with Zinc ammonium chloride in it. All piping is mild steel.
I would like to know what if anything i should add to the system to keep it healthy.

I am not sure if i can or should add anything because of all the different metals in the system.


Thanks,Joe

 

[Metalguy]

See the reply where you posted this message in the Heat Transfer Forum.

 

[negotiator]

Your bath will have to be sampled over time and see the
valence imbalances that occur in your mix, about 6:11:1 .
This is not possible to isolate the effect of ionization
upon any-one-pipe. Stainless is so trouble-free when you
cannot afford worry.