[CurlyDave]

...It is safer than TSP because it doesn’t have the harsher chemical base of TSP, which I believe is chlorine based.

Your belief needs to go back to chemistry class.

TSP stands for Tri-Sodium-Phosphate. There is no chlorine in it.

[roadcat]

You’re right. My mistake comes from comparing Oxi-Clean versus Oxyclean, not TSP. Oxyclean is a chlorinated cleaner and is not the one I’m recommending. Both TSP and Oxi-Clean have no chlorine. I haven’t taken chemistry classes in decades. The old mind is rusty.

[BBB333]

And there are, now, NO phosphates in TSP...