Hi. Need to top up inhibitor in a sealed central heating system but no records as to what had been previously used. Boiler manufacturer recommends either Sentinel x 100 or Fernox Copal for the Aluminium heat exchanger. Would it matter if topped up with either one, irrespective of what had been previously used ? ie. would a mix of both in the central heating system cause any problems ?
Many thanks for any assistance.
regards.
Many thanks for any assistance.
regards.