To who ever may be able to help. I have recently moved home and the water pressure from the mains supply is dire. We use a reach and wash system for our work and part of the filtration process is an R.O. unit. Apparently these require a certain amount of pressure and flow rate to remain effective for the end result and to increase the life span of the R.O. unit. The information i require is what type of pump should i use and who would supply the right pump for the job.