Recent content by markyjones

  1. M

    Flushing Vaillant ecotec 831 combi boiler

    Thanks guys. I will indeed run these programs as per the manufactures instructions P.06 (moved diverter valve to mid position) when draining. Before filling run the P.06 test again then fill to 1-1.2 BAR. bleed rads from bottom up. then run P.00 test program. confusion i have is that it...
  2. M

    Flushing Vaillant ecotec 831 combi boiler

    Hi there, I would like to flush my heating system with sentinel x400 for a day or so then drain till clear then finally fill with sentinel x100 inhibitor. Thankfully I have a towel rad in the bathroom which has a bung i can simply pour the above treatment into and my drain point is outside...
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