Sentinel X400

[Firegod]

Hey, our heating system is in need of a clean. It hasn't been done for many years and one of the towel rails was blocked with sludge yesterday. Never been off in 20 years! Took it apart and fixed it all. The water was black.

I'd like to run some X400 through the system and flush.

We have 13 radiators. Mostly double panels including 3 large towel rails. The dosage says 1 tin will do 8-10 rads in a typical system. Should I just get one or do you think a double dose would be safe?

I then plan to run it for a fortnight before flushing.

Thanks!

 

[FlyingFish]

X400 is a good start and yeah stick 2 bottles in.
In an ideal world you would have a system filter that will hold onto the sediment as its broken down rather than have it run round the system.
You can keep it in the system for around 4 weeks, but 2 should be fine, as long as you actually use the heating regularly to keep it doing it's job.
Make sure your properly drain the system till everything is empty, not just flush through a leg of pipework.
Add 2x inhibitor and you should be fine.

 

[Firegod]

Smashing thanks. Gone ahead and ordered the 2 bottles of X400. I also as you say, plonked in x2 inhibitor and also the noise reducer as well into the order.

Cheers.