To find central heating leaks look for:
- Wet surfaces\carpets.
- Staining underneath boiler – usually white.
- White or green staining round pipe joints.
- Boiler pressure dropping.
- Wet or damp pipes.
- Wrap a paper towel round pipe joints – look later for wet towel.
- Put coloured paper underneath pipes or radiators – look for water stains.
- Check everywhere for water drops.
- Don't try to mend the boiler.
- Don't over tighten pipes – tighten by half a turn at most.