This is part of am email ...

This is part of am email from Mark Tonkins which you may find useful.

mark@hope-resources.co.uk

there is a huge amount of interest in the principle and execution of the dRHS™ technology. (Dutyion™ Root Hydration System).

I wrote to mark with this question

I love the concept of being able to use poor quality water for irrigation and remember the DuPont product of quite some years ago now and the question that was asked at that time was along these lines: if you have poor quality water from which you are removing the water then you must be concentrating the pollutants in the water in the pipe network.

How are you then disposing of this poorer quality water?

Has there been much interest in the product?

First question: Basically we do not alter the make-up of any water supply other than, as you rightly mention, concentrating pollutants by removing water from the mix.  The pollutants build up in the pipe and it is necessary to flush the pipes from time to time, before any salt or mineral crystals form.  There is no need for fresh water, just the original source water used as a ‘propellant’ to move pollutants along the length of the pipe and discharged into the original supply where they will mix back down to the ambient level.  The frequency will depend entirely on the rate at which any plants or natural ‘evaporation’ remove fresh water through the pipe walls.

I am not sure of costs but this may be worth pursueing with Mark