Unblocking Microbore Central Heating Pipes -

If a specific microbore pipe is dead:

Arthur mixed a solution of heavy-duty central heating cleaner—essentially strong acid—in a syringe. He fed a small tube down next to the camera until it touched the sludge. He injected the fluid, letting it sit to soften the iron oxide. unblocking microbore central heating pipes

: Individual radiators remain cold or only warm up at the top. If a specific microbore pipe is dead: Arthur

| Symptom | Likely Cause | Best DIY Fix | |---------|-------------|---------------| | Radiator cold at bottom | Sludge in radiator | Remove radiator, hose flush outside | | Pipe to radiator stone cold | Blocked microbore leg | Wet vac on the pipe end | | Gurgling + cold patches | Air + sludge | Bleed + add X400 cleaner | | All downstairs radiators cold | Blocked 22mm return | Call pro for manifold backflush | : Individual radiators remain cold or only warm