Pretty good,mine is around 480ppm Good luck with the g/f 30ft pole,it weighs a ton!! Try not to use mine too much!
Got my system this afternoon charging battery and the charger blow up and triped the Electricity ,sending new charger out,just flushing the ro out now it says flush it out for 2 hours is that right plus my tap water is 120 ppm is that good or bad 30 Foot glass fibre is heavy but thats all i could of afford at the moment. thanks bumper.
Right ive got some water going in barrel but just a trickle its reading 002 ppm now, but water still comming out of waste pipe thanks bumper