it means Caribbean Examination Council (CXC)
Cxc = c + (c-x) = 100+ (100-10) = 190
The word backflow in terms of plumbing refers to an unwanted flow of water in the wrong direction. The risk of a contamination of clean water is prevented by backflow prevention devices.
This depends to what exactly you are refering too. However it could be, close coupled for a toilet unit and cxc is code for compression fittings.
C = 100 and XC = 10 less than 100, which is 90, so CXC = 190.
Mechanical joint
Dezinctafication process
DRZ is not an acronym that is used in the plumbing industry so it does not stand for anything. DFU in plumbing means drainage fixture unit.
There is no such thing as a distinction in CXC...look it up!
An ORG, expanded, is an Overflow Relief Gully
samantha johnson
Where can I get my cxc results for 1990 . I don't have the registration number