Oh, you have the new triple inline TDS meter, first one I have seen other than online. I still much prefer the handhelds since they are more accurate and give you the ability to test your ATO storage etc.
Since you are using softened water you are a good fit for the 3:1 waste ratio but I don't think I would drop to 2:1 with a TDS that high. Even though they tell you it is a 3:1 restrictor it is always good practice to measure the actual installed waste ratio since everyones conditions are different. It may save you a membrane and lots of DI resin replacements if it is not high enough.
If your softened tap water TDS is 280 and the RO only is 4 that is a 98.57% rejection rate which is very good.
Since you are using softened water you are a good fit for the 3:1 waste ratio but I don't think I would drop to 2:1 with a TDS that high. Even though they tell you it is a 3:1 restrictor it is always good practice to measure the actual installed waste ratio since everyones conditions are different. It may save you a membrane and lots of DI resin replacements if it is not high enough.
If your softened tap water TDS is 280 and the RO only is 4 that is a 98.57% rejection rate which is very good.


