tds

  1. Muffin87

    How reliable are cheap TDS pens to test RO/DI in the 0 - 3 TDS range? Hanna Pure Water Tester?

    What is everyone here using to test the TDS of their RO/DI? Any tips or experiences concerning the reliability of cheap TDS pens? Would you trust a cheap HM Digital TDS-3 Handheld TDS Meter? Plenty of positive reviews, but a reviewer pointed out: The Hanna Pure Water Tester looks like a better...
  2. A

    Free Ammonia after RO, Safe to Use?

    Hi Reef2Reef. Have a quick question about acceptable chloramine and ammonia levels coming out of an RO filter. I'm using a 4 stage RO filter only (No DI) and testing finished water quality for chloramine and ammonia, and testing using an API saltwater test kit. Currently reading somewhere...
  3. D

    Really hard water issue

    I'm new to reefing and saltwater in general, and I now have a pretty large algae bloom. I read somewhere it can be caused by something in the water if it hasn't been filtered properly, or that the presence of it also means the tank has finished cycling. Regardless, this led to me testing the TDS...
  4. Salt_Creep

    RODI: Membrane flushing, TDS creep, and best practices questions

    Hello, I have recently moved to a larger tank and larger holding containers and I have found that I need to replace my DI resin just about every week or else my TDS starts creeping up, which raises my ALK in my tank via ATO. I do have well water, so its gross. At the RODI unit, it goes in at...
  5. Justgottadiy

    Does temperature of water going into rodi unit affect the filters life??!

    I’ve recently moved to Colorado from Florida. I’ve noticed that the tap water here is cold enough someone LITERALLY does not need ice lol. In fact when the rodi was running at night to fill 100 g system (Total water volume). There was condensation on the unit. At just a hair under 80 psi and...
  6. H

    RODI TDS

    Is it safe to use rodi water that has 3 tds? My rodi unit needs new filters but i have about 45gallons of rodi water that has 3tds i feel bad dumping it but dont want to use it if it'll cause problems.
  7. L

    RODI TDS in mixing tub

    I was making RODI water today and testing it as it comes out of the 4 stage RODI filter. It was reading ~160 in and 0 TDS out. I then put the fresh RODI water into my 20 gallon saltwater mixing tub which is a food grade Sterilite storage container. Within minutes I tested the water and it...
  8. Joe Batt

    TDS and Tin

    Would 0 TDS RODI water mean that tin is not present, or could tin not even show up on TDS meter?
  9. divetoday

    How much TDS is acceptable?

    I was surprised to test my TDS after making 15 gallons of ATO to see it at 12. I generally run between 0 and 2 at the most. I have changed out my resin and gotten the TDS back down to 0, but I wonder if I need to throw out the 15 gallons of RO/DI I just made or if I can still use RO/DI that has...
  10. BlueWorldJeff

    Drinking Water - Should I drink tap vs. fridge filter vs. RODI?

    Is it healthy to drink 0 TDS water as my only drinking, cooking water source? Or do I need the minerals left over. Our tap water TDS is 450 and even through the fridge filter, it is still 400. We even got an Aquasana whole house filter with softener and pre/post filter and it still shows...
  11. J

    So what's everyone's Tap TDS and how do you handle it?

    Over the past little while I've been reading lots of threads on RODI selection questions and seen some responses here and there about some who have insanely high and insanely low TDS and pressure coming from there tap. And it really got me wondering how wide of a range there really is out there...
  12. K

    High TDS

    Whats the best way to set up an RO sys for water thats 480 ppm ? DI going way to quick. i have pre filter, 2 stages carbon, a 150gpd ro= 14-15tds, and a 75+75 water saver sys from BRS =22tds. if i run the out put from the 150 to the 75+75 i get 1tds but water output is to low. in coming water...
  13. tonybwill

    anyone use PureWater ro/di system.....

    I need to change the filters and I don't have a clue where to start. TDS reads 33pm.
  14. fmf_21

    REEF OCTOPUS skimmer XP-2000SSS !

    1 x Reef Octopus super xp-2000sss skimmer $200 All items where removed from a running system and are clean and ready to use . Please feel free to PM and questions . Prices do NOT included shipping but can be discussed via PM . Thanks
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