Agreed.

Bro uses a britta and it only drops his tap water .02 or so.

I have 2 R/O filters and the water is almost the same after. 7.0 before and 6.8 after.

I have a hanna combo that needs the ph probe replaced for the scound time but 6 years old. Now I use a cheap milwalkie but they work very well and last as long as you don't drop them in water. And I know when it needs calibrating by always checking the R/O, it never changes.