Fernox DS9 Current equvilant.

[Orionaut]

Is there one?

I have tried DS40 but, really, it is the low fat Vegan version.

My current system has very old second hand Iron rads and I have never been able to definitively clear them of sludge.

Unfortunately DS9 was no longer available when I built this and I have never been able to find something that will do the job.

Any suggestions?

 

[Vern1961]

Would be interested to hear an answer to this too. Our CH getting a bit sludgy and noisy again (despite the magnafilter). Last time I cleaned it (2 years ago) used X400 which in hindsight was probably as effective as using harsh language. There's X800 but ISTR another thread pointing out the "X" products don't actually strip sludge that has adhered to the pipes etc., just gellates (sp,?) the particles which are in the water so they drain out.

However, I also need something which is not so powerful it's likely to cause leaks in what is quite an old system.