Even the water industry agrees that the current standard, 50 parts per billion, is far too high.
All three methods are used extensively in the water industry throughout the world.
Experts from all areas of the water industry have been meeting in Oxford to look at how to deal with such problems.
Australia has a small but long established solar hot water industry.
The water industry began using flexible membranes in the 1950s.
South Africa also has a strong water industry with a track record in innovation.
Old hands in the water industry are critical of the Brussels commission.
The captains of the water industry are happy to go along with Brussels.
Erm we's we've had a number of changes in the water industry over the years.
So they're working to different standards than that the water industry.