While the rain came down, we went back and continued with the construction of our new workshop Vacuum system. We started building up the boxing and chambers it will need for the two separate filters and non-return flappy valves. We now have the filter box made with two attachments to hold the two paper cylinder filters, a sharing layer so that if one motor is only running, then both filters are always being used to reduce the airflow through each filter and hence reduce the speed which the filters will block up. The next layer is where the non-return valves will be situated but sofar we have just made the boxing and glued it together.
Tomorrow, holes will be made to let the air through, both up and down, and the motors then can be fitted on top.