ᐅ Discolored heating system water with signs of rust detected.

Created on: 13 Dec 2017 19:43
H
hstkai
Hello,
my heating system has been running for just over a year now. By chance, I recently noticed discoloration on the flow meters, see picture.
I filed a defect report with the general contractor, stating that the heating water appears rusty/sludgy, as evidenced by the flow meters. Their response was a casual statement that some discoloration on the flow meters is normal to a certain extent and that if there is a serious malfunction of the underfloor heating, it will of course be fixed.
Do your flow meters look like this as well?

Several transparent hoses connect metal pipes; valves, control unit, and cables.
Mycraft14 Dec 2017 13:00
1. is not mandatory according to generally accepted technical rules.

2. is mandatory according to generally accepted technical rules.

3. possible but not considered a defect.

4. possible.

Even though the systems are often filled with regular water, they are usually softened using cartridges.

However, it is often just the expansion vessel (membrane expansion tank) that is the culprit.
C
cinderella21
26 Jan 2019 16:57
Hello,

It’s the same for us, and the heating engineer is making excuses.

@hstkai: What did you do back then? We are currently very confused; our house is only two years old.

Several vertical pipes with red sealing caps and scales on a distribution system.
D
Domski
26 Jan 2019 17:13
@cinderella21 Have a sludge separator installed and perform intensive flushing. Then refill the system with treated water and carefully ensure that no air bubbles remain in the system.
C
cinderella21
26 Jan 2019 17:20
We are now going to have a water analysis done as well.

I find it strange that neither a magnetic sludge separator nor a microbubble separator was installed in our system.

And I wonder why a standard steel towel radiator was installed along with regular carbon steel pipes from the manifold of the underfloor heating system upstairs to the towel radiator in the bathroom. Is this poor workmanship?
H
hstkai
26 Jan 2019 17:44
@cinderella21
As Domski already mentioned, install a sludge separator, drain the heating circuits once, then flush and refill each circuit individually.
I did everything myself because the plumber was the worst *****.
C
cinderella21
26 Jan 2019 17:46
@hstkai Did your pipes sustain any damage from that? Or did everything remain intact? We are just worried that all the pipes might start rusting inside, or that the entire system could be damaged.

Is your heating water clear now?

Thanks for the help!