time and tide

Today we completed the final four corners for the blockwork. Just the 200 odd blocks to infill now.  All the 24 150º corners on the top course of blockwork have now been placed and levelled and are within 2mm according to the laser level which means we have laid blocks over 25m apart and almost exactly level. We are not happy with two inaccuracies - the sunspace level is 460mm below the final house level instead of 450mm but that can be sorted out fairly easily by shimming the sole plate. Also the distance between the two roundhouses for the entrance lobby is 5070-75mm instead of 5080mm. This means the SIPS panels for the lobby may need trimming down which is more of a pain than infilling. The 12 sides of the small roundhouse are all +2mm maximum and the large roundhouse are all +4mm maximum. Both these are within our required tolerances. No radius from a centre is more than 10mm out. We are pretty pleased with our final levels of accuracy though the 10mm out for the lobby rankles a bit. We are two amateurs though and not professional bricklayers doing groundworks.  I should finish the blockwork before Easter weekend if the weather holds. Meanwhile it is a high Spring tide tomorrow and we  scrubbed off the bottom of the two hulls of the catamaran this morning ready for antifouling tomorrow early morning as the tide ebbs. We have very low tides here - 1.2m on Springs but with the High pressure we will a lower ebb and about 5-6 hours for the antifouling to dry off before the tide comes in.  We also have a three hour tidal rise and fall and then a standing tide for two hours which makes the job easier. We are almost certainly going to get less than a week sailing this year but even so these jobs have to be done.
We are now three weeks behind our hoped for timetable but most of the lost time has been due to wet weather earlier in the month and during March.