Eternal Thermochill Flushing

[eponymous]

Okay, I started flushing now.
I used tap water for like 15min on each hole, I did'nt see any white stuff.?
And now I cant flush it thru with di-ionized water untill tomorrow, is that ok?
Would it do any good leaving it full of tap water until tomorrow?

In my experience you really should fill them with tap water and leave them for 24-48 hours. After which, empty out a little water and shake the rad for 3-4mins. You'll see loads of flux come out.

By the way, even after all the flushing I've done, I'm still letting the radiators stand with water in them and then emptying them out after a shake - I'm still getting flux!

I'm sure my radiators have an infinite supply of flux in them!