We started to build the concrete block perimeter piers. The top levels of the concrete pads had been set a few days ago using a long piece of wood and a level, measuring down in relation to the top of the cellar walls. Unfortunately, in our rush we added rather than subtracted the thickness of the plywood which will go on the underside of the ground floor structure (which will be on top of the cellar wall, but not on top of the piers)! This meant that the top of the slab was too low, and when this error was added to the substantial margin of error that we left (it is easier to make the pier higher than shorter) we had to put a substantial layer of mortar under the first block in some of the posts.
This kind of error is demoralizing, but we were able to deal with it without too much damage. We will build up the base of the post with concrete left over from another neighboring house build, to provide more stability.
We positioned the posts using triangulation - measured from two fixed points at the ends of the cellar wall - and a water level - buy using a clear hose filled with water - which we should have done in the first place!
The difference in levels and colour of the water at the base of the two cellars is significant - when viewed from the top of the party wall.
Submerged ladder ...
What happens when the site safety officer leaves for the day!
We positioned the posts using triangulation - measured from two fixed points at the ends of the cellar wall - and a water level - buy using a clear hose filled with water - which we should have done in the first place!
The difference in levels and colour of the water at the base of the two cellars is significant - when viewed from the top of the party wall.
Submerged ladder ...
What happens when the site safety officer leaves for the day!
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