MasterDRAIN first saw the light of day in the early 1980's. It existed then as a DOS program (remember MSDOS 3.1?), but even in its early days, it gave full hydraulic data for a drainage system, including proportional velocities and flows, and hydraulic mean depth.
In this early version, MaterDRAIN was linked with the Bilham formula in order to calculate rainfall intensities, but following the publication of the Wallingford Procedure, location specific rainfall intensities were able to be calculated.
If you have a copy of the 1988 Institute of Plumbing Engineering Services Design Guide, you will see a printout of this version on page p102. This program was also used as a basis of a lecture to the American Society of Plumbing Engineers in 1986 on 'Computers in Plumbing Design'.
The code has been updated over the years, from DOS to Windows 3.1, and then to 32bit operating systems - Win95/8 to Win2000 / XP as well as operating systems that use 64bit computing Win XP 64bit, Win 7/8/10. Today, MasterDRAIN programs use the latest technology to provide a modern approach to all phases of designing and sizing process. The solution portfolio covers all the functions necessary for calculations and analysis for a range of drainage applications.
The program is under constant development to increase the functions available, and to decrease the learning curve. Many of the functions have been suggested by engineers that have used this program, and further suggestions or comments are welcomed.
