ZeroWater filtration pitcher filters water to 000ppm & comes with a TDS device. These are usually less than $40 but the filters don't last long. I distill my water first which drops it from 200ppm down to 4ppm & then filter with this. I only use this filter for CS, so it should last much longer.
I bought a refurbished water distiller off ebay. Here is a buy it now price of $96 (with ship) but he also has ones every day to bid on. If you bid $52 + $16 ship - you will probably get a second chance off to buy one.