Tds is it knackered

[nickbrick]

I just bought a new tds and its showing 51 ive checked on the website for my postcode and it says 200 any suggestions please

 

[Eviestevie]

Maybe it's right!!!

Test it some pure see if it reads zero

 

[♠Winp®oClean♠]

Your TDS meter will be correct.

 

[nickbrick]

Your TDS meter will be correct.

It says it should be 200 and i read it about 2 years ago and it was about 200

 

[♠Winp®oClean♠]

It says it should be 200 and i read it about 2 years ago and it was about 200

WHAT says it should be 200?