I bought this filter from eBay:
https://www.ebay.com/itm/5-Stage-Ho...-filtration-Hollow-Fiber-System-/142041081146
And it seems to have risen my PPM from 260 to 470..
My last filter got it down to 30, and that's what I was expecting.
What does this mean?
https://www.ebay.com/itm/5-Stage-Ho...-filtration-Hollow-Fiber-System-/142041081146
And it seems to have risen my PPM from 260 to 470..
My last filter got it down to 30, and that's what I was expecting.
What does this mean?