I live in a very hard water area, have an old Potterton Flamingo (no money to replace it). When I moved in 10 years ago, it banged like a hammer, I gave it a clean with a Fernox product (not the flocculating one), flushed well, and put in Fernox inhibitor from a cube-shaped gallon container. This cured the noise but searched for leaks on joints and left a brown toffee deposit when it found one.
Subsequently when I was injured and unable to get into the loft for a couple of years, I had an un-noticed long term dripping ball valve in the F&E, which presumably washed all the Fernox out, followed by a black blockage in the F&E tee. This was cut out and syst powerflushed at great expense. Refilled using Sentinel X100. The boiler seemed to be clonking again so I added X200. I think it helped a bit but after a year it seems to be clonking again/still (I might just be more conscious of it because heating running as it's cold). I have added another bottle of X200 (the syst holds 20 galls of water).
I am generally pleased with the syst, it makes no gas, does not use perceptible water from the F&E, no sediment when I drained a rad and the sample water is yellowish and slightly cloudy (you can read a newspaper through a jar of it though).
I have looked up Sentinel X200 on here and on the Dearborn site, I am following the instructions but don't see how it works. Does it dissolve the scale and let it circulate in the water? How come you can leave it in permanently? Would it help to drain, flush and refill with fresh fluids?
BTW I have a water softener now, the soft water has cleaned away all the old scale from my kettle, taps and cisterns, so I think it's great.
Subsequently when I was injured and unable to get into the loft for a couple of years, I had an un-noticed long term dripping ball valve in the F&E, which presumably washed all the Fernox out, followed by a black blockage in the F&E tee. This was cut out and syst powerflushed at great expense. Refilled using Sentinel X100. The boiler seemed to be clonking again so I added X200. I think it helped a bit but after a year it seems to be clonking again/still (I might just be more conscious of it because heating running as it's cold). I have added another bottle of X200 (the syst holds 20 galls of water).
I am generally pleased with the syst, it makes no gas, does not use perceptible water from the F&E, no sediment when I drained a rad and the sample water is yellowish and slightly cloudy (you can read a newspaper through a jar of it though).
I have looked up Sentinel X200 on here and on the Dearborn site, I am following the instructions but don't see how it works. Does it dissolve the scale and let it circulate in the water? How come you can leave it in permanently? Would it help to drain, flush and refill with fresh fluids?
BTW I have a water softener now, the soft water has cleaned away all the old scale from my kettle, taps and cisterns, so I think it's great.
