Must admit not heared anything like that before.
I use microsplitters but more often then not Nemesis Super and M Power as presrays, which is going to get circulated because I have the CFR 500 HWE machine.
In the tub I have had Prochem Double Clean powder, Prochem Woolsafe liquid, CFR anti foam liquid, Karchers own powder plus no doubt others that I wanted to try (not all at the same time). I can't recollect any problems. Just needed to make sure the jets were clean from time to time (4 of them).
Have a word with Matt Cleansmart Nottingham, or Amtech themselves.
Worth an enquiry and further investigation as the WWand is about a third cost of Rotovac (but I have never used a Rotovac so I might think that good as well....or not!!)