His father, David Drimmer, was a civil engineer who grew up in Chernowitz, studied in Vienna and moved to Romania after marrying Janette Shechter.

[1] Romania was allied to Germany during the Second World War and though Jews underwent persecution, they were not sent to extermination camps, unlike those living in countries under German occupation.

Subsequently, he worked as a research engineer at the national Hydraulic Laboratory in Bucharest and published a few articles in a local professional journal.

[4] In 1976 he joined the academic staff of the newly founded Faculty of Engineering, Tel Aviv University, where he taught various courses in fluid mechanics, hydrology and environment, becoming a professor emeritus in 2000.

A few of the graduate students he advised became leading scientists, e.g., Prof. Yoram Rubin (Berkeley), Prof. Michael Stiassnie (Technion), and Prof. Yhezkiel Mualem (Hebrew University).

His main field of research is groundwater hydrology; he developed quantitative models, theoretical and applied, of water flow and contaminant transport in porous media (soil and aquifers).

[7] The models serve for the better understanding and prediction of processes occurring in the upper soil layer (irrigation, drainage) and in aquifers (exploitation, pollution).

[8] [9] This approach has generated considerable interest due to its impact on modeling groundwater pollution, a process which increasingly affects deterioration of water qualify in different parts of the world.