TDS Meter

[supertech99]

Just went in for joint custody on a TDS meter with Hobyfish and tested my RODI, It was 0, I was happy. My tap was 114, that seems low to me for tap water, is it? Does anyone know what straight RO usually tests at? I think i am going to go to get some of the water at the supermarket and test it too just for giggles.

 

[andywe]

Water in this region is actually lower in tds than many areas in the US and 114 isn't surprising.

RO water with good membranes will test anywahere from 2-5, and after DI should be 0.

 

[sedor]

+1 some cities just have been water than others. There are even some places that have almost perfect water, and others that is just plain nasty.

 

[sandalscout]

Yep, this area has really low TDS water, the limestone formations make great filters.

 

[ameares8]

114 - 116 is what it tests at over here on Riverrock. I was surprised when i saw that too. I thought my tap water would be higher than that.

 

[supertech99]

so at what TDS do you start to see issues as far as algee goes?

 

[NeveSSL]

Our water on the southwest side of town sucks. I have about 250+ TDS going in. Your output on your RO should be around 10% of whats going in, I think. It may be 5%... I can't remember right off of the top of my head.

Brandon

 

[sandalscout]

Brandon, 250 is not horrible, even if it is significantly higher than others around you. Some major cities (I believe NYC is one) has TDS in the 750-1000ppm range.

 

[ameares8]

When my TDS got up to 16, I had a nice algae breakout. Back down to 0 now.

 

[supertech99]

publix water dispenser in cleanish jug, TDS 8, still not bad!

 

[NeveSSL]

My TDS may not be horrible, but the amount of chemicals they put into the water is! Honestly, we can go away for a weekend and come back and when I flush the toilet, it will smell like a pool!

Brandon

 

[kennedy450r]

My tap water test at 48, I got a bottle of nestle water and tried it, it was at 58. I have a built in tds meter on my rodi, it quit working, it was reading 0. Handheld was reading 17 nice algae outbreak.