[easy clean]

batteries went in tds meter and only just got round to buying new ones today.

ordered 20ppm solution and zeroed my meter, tested water that ive been using for weeks and weeks now and it reads 10, which is what comes out my ro, not had no probs with marks either and i know that cos been doing a big job today and done insides after,

who needs resin

[geefree]

you havent  tested your water for weeks and weeks?...

it may come back to haunt you at .... 10 ... or it may not....

but it is high, and not really pure is it?

dont think i would dare take that risk. 

[jeff1]

batteries went in tds meter and only just got round to buying new ones today.

ordered 20ppm solution and zeroed my meter, tested water that ive been using for weeks and weeks now and it reads 10, which is what comes out my ro, not had no probs with marks either and i know that cos been doing a big job today and done insides after,

who needs resin

You bought the wrong calibration fluid, the one you need is 342 ppm NaCl solution

[steve m]

with a reading of 10 you shouldnt have a problem, wouldnt be the first time for me either

[geefree]

rainwater for me in the future then...... my rain is 12.

[jeff1]

Its higher up the scale of you meter, lower down and you may end up calibrating it falsely and its what the manufacturers recomend.

[LWC]

i used just rain water once...did about 10 houses, had 2 complaints...the otehrs didnt say anything, but they could just be to polite?

[Bazzy1999]

I didn’t have any problems when my water was 10ppm i even cleaned windows when it was at 15ppm without any problems they all come up great with no spots but it did start to spot on some glass that didn’t sheet but then it was only the odd window with 1 or 2 spots.
If my RO could get my ppm down to less than 10 then i would not use resin but thats my choice.

Bazz…