CHEAP tds meter!

[kelley_mc]

I just came across this and I thought I would share.

TDS Meter (http://www.purewater4u.com/install/tdsmeterinstructions.shtml)

I have never used it but it is a Hanna and it does automatically compensate for temp.

[aquaman67]

That's the one I use.

Here is the calibration fluid, it's the 1382 TDS fluid about 1/2 way down the page.

http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=4512&Ntt=tds%20solution&Ntk=All&Ntx=mode+matchallpartial&Np=1&pc=1&N=0&Nty=1

Make sure to use very clean glass containers to check TDS as plastic cups will give you false high readings and calibrate often.