radiator noise gurgling crackling f&e black water

  1. S

    I can't get any sleep! - Radiator gurgling and crackling.

    Hi all, Last resort here. Please bear with me as I will try and provide as much info as I can at the start! I have a 18 year old Y-plan vented system with potterton suprima, 13 rads (6 down and 7 up) and indirect coil water heating. Pump is Grundfoss (max speed III), mid position from Drayton...
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