Navitron Renewable Energy and Sustainability Forum

HEAT PUMPS & Geothermal Energy => Heat Pumps => Topic started by: rogermunns on February 02, 2015, 04:50:12 PM



Title: UF heating water - additives?
Post by: rogermunns on February 02, 2015, 04:50:12 PM
My UF heating pipes were filled with simply water 4 years ago. It is very unlikely that the system will ever see freezing temperatures, so I reasoned normal tapwater would be ok. The only problem is that it has turned a bit brown and I cannot now see though the plastic flowmeters so as to balance the flows between zones.

Filling these pipes was very awkward - air locks - so I am a bit reluctant to drain the water out. Is there anything I can add to the water(I can do this via the buffer tank, draining some water off if necessary) so as the clear it?



Title: Re: UF heating water - additives?
Post by: desperate on February 02, 2015, 06:22:06 PM
Not as far as I know, once the water has gone brown that's it, I would just dose it with some kind of corrosion inhibitor and forget those silly flowmeters. Can you ditch the feed and expansion tank and convert to a sealed system?

Desp



Title: Re: UF heating water - additives?
Post by: rogermunns on February 02, 2015, 07:27:36 PM
No, not really. I've done a lot of Heath Robinsons in my 70 years and I can't face messing with this system again. But it is fairly reassuring about the brown water - I thought it was maybe something to worry about.