Should I Drain and Refill Water in Boiler ?
Per the manufacturers information that black sludge is iron oxide (rust) that has been bound up by the chemicals. It also says you need to flush existing systems thoroughly.
Try their website for complete instructions,
http://www.fernox.us/problem+solving/how+to+sheets/cleaning+a+central+heating+system
Try their website for complete instructions,
http://www.fernox.us/problem+solving/how+to+sheets/cleaning+a+central+heating+system
I used the corrosion inhibitor. Yea looks like I should drain and flush the system out. Do I have to open all the radiators while flushing ? It has 19 radiators in 4 apartments so I will be running around a lot if I drain it 3-4 times.
- franpipeman
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If you have a closed loop hydronic system, and if you have no leaks, and you never add new water , need you drain and flush your system?
- Rob R.
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No. Assuming you fill the system with good water to begin with, it becomes stable and does not need to be replaced. The problem is that lots of old systems are run with leaks, or nasty water, and end up needing to be cleaned/flushed when a new boiler is installed.franpipeman wrote:If you have a closed loop hydronic system, and if you have no leaks, and you never add new water , need you drain and flush your system?
- franpipeman
- Member
- Posts: 689
- Joined: Fri. Jan. 11, 2008 4:27 pm
- Location: Wernersville pa
- Stoker Coal Boiler: efm 520 stoker fitzgibbons pressure vessel
- Hand Fed Coal Stove: harman, russo
- Coal Size/Type: rice
- Other Heating: alpine propane condensing boiler radiant floor
thank For the reply and confirmation