The use of maths in plumbing. A aptitude to maths is identified in plumbing at a very early stage.  The aptitude test that is taken as a criterion to identify a student entry-level before entering a plumbing course    However, a weakness in maths should not be a deterrent, because plumbers are not made in classrooms but out in the field.  Whatever the outcome of the test improvement can be made.  A student can develop numeracy skills with a little time and effect. The basic maths that are u...