I am about to use some Fernox DS40 to get rid of corrosion/magnetite sludge in my CH system (due to excessive hydrogen being produced).
I have a gravity fed system, the boiler is a Baxi Bermuda Back Boiler 552 an the cylinder is a coil type double feed indirect (Dublotank 100). With this kind of system, selecting either hot water only or central heating will always force the hot water flow to go through the coil in the HW cylinder.
Is this safe to let Fernox DS40 go through the coil in the HW cylinder?
If not, my only solution would be to change the jumper at the back of the timer from Gravity to Pumped system. This should allow the 3 way valve to allow the hot water flow to only go through the radiators (and not the coil) when selecting the CH setting. But would this be safe? And how can I make sure the hot water does not circulate through the coil?
Any help would be appreciated.
Thanks,
Ant
I have a gravity fed system, the boiler is a Baxi Bermuda Back Boiler 552 an the cylinder is a coil type double feed indirect (Dublotank 100). With this kind of system, selecting either hot water only or central heating will always force the hot water flow to go through the coil in the HW cylinder.
Is this safe to let Fernox DS40 go through the coil in the HW cylinder?
If not, my only solution would be to change the jumper at the back of the timer from Gravity to Pumped system. This should allow the 3 way valve to allow the hot water flow to only go through the radiators (and not the coil) when selecting the CH setting. But would this be safe? And how can I make sure the hot water does not circulate through the coil?
Any help would be appreciated.
Thanks,
Ant