- Lock in the profile at the lowest point of the foundation, with a height notch set at the standard correct height (225mm For standard UK Block)
- Set up the far end, use a water or laser level to align the notches between the 2 profiles so they’re in horizontal alignment. (Note; the 1st notch is set at 50mm on one end of the profile and 25mm on the other end, this allows for greater flexibility when setting up and facilitates getting perfect levels. The notches are 75mm apart (between) thereafter.
- Attach the string line & correct the irregularity by cutting the initial course of blocks.