Regarding that web site in my original post.This is possibly `Heath Robinson`,,,but,,
Do a search under golf umbrellas and also Parasols.There`s loads to go at! It`s true
What Jeff says,ya get loads.Off my own garden shed roof that’s 8 foot x 6 foot.A
200 liter water butt soon fills,it`s amazing.A parasol or umbrella directed into an
Individual container,at short notice,done relitavley quickly after half an hour or so.
Certain parts of the country your ppm would be 3 zero`s.3 ppm at the most and would
Stay constant at that,because of no contamination.Do a `search`,what do members think? Replies appreciated.
Lewis Doubtfire