An excellent article that - thanks for sharing
That should be re-posted in forum admin as an instructional media.
I know explains the whole pure water thing really well. From water purification specialists with a sideline in Tucker Poles! Instead of the other way round!
I've read it about 5 times and I think what it is saying is ... that the important part of the purification process is the DI and you should DI or at least polish after it is sat in the tank - which I never knew - I suppose it's the balance of cost get the tds down to an acceptable without wasting too much water then DI which is obvious but when does the economics kick in 100 TDS 80, 70?
Cold is better than hot it says because of removing the oxygen and increasing CO2 which is bad for the frames and building cladding ... are the hot pure water window cleaners spraying around acid rain and greenhouse emissions?
Don't go near any limestone building or national monuments you lot! What does it do to powder coating I wonder?!
Anyway if you look at some of their info on the website ....
it says that you should avoid staitic ro units that are van mounted cos you're just damaging the membranes
no more diy intallations then
Use a water softener unit first cos they're brill and cheap
may be a ball ache but saves money further down the process
The longer the water is stored the worse it cleans ... because of re-ionisation than creeping TDS I think
correct me if I am wrong!
Use a tank that is impervious to light ... presumably because of the algae (wyedale I hate you!)
I don't know anymore ... as it all been hearsay, anecdotal and placebo from window cleaners plus smoke and mirrors from manufacturers.