Originally Posted by fort384
I would not go with either, and go with a bulk reef supply 4 or 5 stage 75gpd. It is a good solid unit that is a compromise between cost and quality. I have heard many complaints about both the units you have listed. I have heard very few or no complaints on the BRS units. If you get the deluxe package, you get a TDS
meter inline, which is pretty much a necessity.
BRS 4 Stage Value Plus RO/DI System - 75GPD - Bulk Reef Supply
Ok thanks, I sort of got my questions answered in that other thread.
My only other questions are on a TDS
, ph, salinity meter.
So whats the differance between HM-Digitals TDS
-3 and TDS
-4? The TDS
-4TMA also does temp what about the AP-1? Then there is the COM-80 and COM-100? Do I need to measure electrical conductivity? What would be nice is if they had one for salinity too.
I think I might grab a PH-80 or PH-200 and then the COM-100.