hi lewis ive just been out and looked, 009 ppm, also i emptyed the one ibc last night at 10 o clock, 7.30 i looked out this morning and it was full!! and as of yet no filters or anythin, just a downpipe into tank
it couldve been full for a while too! thats 1000 litre in 9 ish hours, thats over 100 litres per hour! better than my ro lol and all free and no waste