New TDS meter

Hey ya'll,

I just got in a very simple TDS meter and I checked my ro/di and it's 33. I then checked my tap water and it's 77. The ro/di was installed NEW on May 24th of this year. Is this thing working correctly? This may be where I'm getting all the algae from......

 

That doesn't sound right. My tap water is about 170 and my ro/di output water is about 4 ppm. I think there is a problem somewhere.....

Jim

 

Wow, I live in Jacksonville FL and my tap measures 478 TDS, my filter reads 0. I think it is alot of calcium. Hope it is safe!

 

That's definitely not right. It sounds like the TDS meter might be off. Did it come pre-calibrated?

Do you have any nitrates or phosphates in your water?

 

I have the Reef keeper system from Air Water & Ice, they included a TDS meter. I have made several measurements of ; bottled water(around 120), My fridge water with its filter(around 250), and my tap(450), and my RO/DI water(0). I have not measured the nitrates or phosphates of my tap water. My filter yes, nill. I have taken to the LFS to see if it is correct also and they agree...

 

I'm going to try my fridge water too. I just changed the filter a few weeks ago. It did come factory calibrated, or so it says it did. I emailed the guy where I bought both from to see if I hooked it up right or if there is a problem. Haven't heard back from him yet.....Will let you all know the outcome.

Guru...I must have phosphates. I've been fighting a battle of the algae for about a year so i bought the ro/di and it really hasn't changed..maybe gotten worse.

I'm going to check a bottle of water I have too, to see what it says.

 

OK Aquafina bottled water was 2ppm, ro/di now at 22 after a quick membrane flush, filtered fridge water at 59 and tap water up to 90.....hmmmmmmm anyone know how long you flush the membrane for? I just use it for top offs and water changes. This is the ro/di unit I have. Most of the instructions were in Japanese and doesn't really tell you more than how to hook it up.

Aquarium 6st 100GPD Reverse Osmosis RO+DI Water Filters - (item 120149242200 end time Aug-13-07 20:10:36 PDT)