System overpumping into f & e tank.

[Bunker]

Installing a pumped system with a blockage in the pipework leaves me feeling let down by one of your peers

I doubt it was a problem at the time, the blockage would have prevented him filling it so he would have had problems then and there.
As Peteheat says and echoed above, once the blockage is removed, make sure you treat the water again (flush,clean, flush and inhibit)

 

[Bryzer]

Do wholeheartedly agree with your comments and have flushed, cleaned, flushed and inhibit. Am still puzzled why a thermostat on the exit of the hot water coil would be left in a pumped system. Even though it wasn't causing a blockage initially, the potential to do so remained, especially since those old gravity thermostats have a history of malfunctioning. Anyhow, the main thing is,no longer rusting out my radiators or heat exchanger. :angry_smile:

 

[Lou]

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