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.
C
cinderella21
2 Feb 2019 15:15
I will probably never get this out again, or can it be removed by flushing and refilling?
Mycraft2 Feb 2019 15:37
With each flush, you introduce oxygen into the system, which promotes rust and bacterial growth again.

There are companies that specialize in cleaning; you should inform yourself about them.
C
cinderella21
2 Feb 2019 16:34
So a standard flush with refilling isn’t enough then, is it?
Mycraft2 Feb 2019 16:35
No, as I said, that could possibly make the situation worse.
C
cinderella21
2 Feb 2019 16:36
So, we will only install magnetic and microbubble separators and wait for the analysis results of the heating water. We do not have the results yet.
Mycraft2 Feb 2019 16:40
Yes, just enter this into an internet search:

bosy corrosion and sludge

There is quite a bit of information available on this topic.