Anyone else had this with their tds?

[ks789]

Hi all

Im not complaining about this as its a good thing, just wondering if anyone else gets the same thing. What it is, my tds is down to 3 after Ro, as I soon need to change resin. I transfer pump out the butt into the tank, then maybe a week later, the bit left in the bottom of water butt i always tip into a container and into my backpack. This is what I dont get, Ive started testing that bit left at the bottom before putting it in backpack, and its always lower than 3. has been 2, but this time was definateley 1. tester is fine etc. Just seems odd thats all

cheers 

kev.

 

[Nudel]

It's within the measuring error margin of the metre itself. Because the sample size is so small you can't rely on it.

I get measurements upwards of 4 if I measure from a cup, but in my 3x200l storage drums it's always 0.

 

[Part Timer]

You will probably find the TDS in the water butt when full is below what you're reading out of R/O. As @Nudelsaid you are only measuring a tiny portion of what's coming out at that moment in time

 

[ks789]

Yes makes sense, cheers for response.