Tap water testresults

I just moved to a new place and found the latest test results for the tap water in my area...to me it looks like, I have absolutely no reason to consider firing up my RO unit...do you see any reason for me to use RO over this tap water???

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you may not even need any Calmag!!!

I just don't know about the clorid, but someone will

I think i will need calmag...as I gather the tap water around 55ppm...getting my ec meter in a few days

Edit...it is ms/m....0.495ppm on the 500scale

The sodium is interesting, whats your tap waters PPM? That will tell you if you need to RO or not. oh , just saw your post, 495 PPM... yup gonna need to RO still. Ouch, where's that 495ppm coming from?

Week4@inCharge said:

The sodium is interesting, whats your tap waters PPM? That will tell you if you need to RO or not. oh , just saw your post, 495 PPM... yup gonna need to RO still. Ouch, where's that 495ppm coming from?

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Well I hope there is a confusion about mS/m...so it is not 500, I cannot believe it to be 500

Edit...it is 500ppm I found it hidden in the companies instructions to test takers...1mS/m=10ųS/cm...I thought it could not be so, they say the max value is 250mS/m

Dankula said:

Well I hope there is a confusion about mS/m...so it is not 500, I cannot believe it to be 500

Edit...it is 500ppm I found it hidden in the companies instructions to test takers...1mS/m=10ųS/cm...I thought it could not be so, they say the max value is 250mS/m

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what instrument are you using to measure and are you in the USA?

No measuring yet...only based on latest tests from the water supplier...getting my combometer in a few days

Dankula said:

No measuring yet...only based on latest tests from the water supplier...getting my combometer in a few days

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Oh ok, I'm following you now, so you are in the states.

Well, I didn't really need this tool (maybe I did) but I do like an accurate reading when testing my tap water, and I should be testing runoff at least once or twice a grow (it's a big no no for organics but it can help if you know what your looking for) and if your using RO water, testing the filtered water will help decide when to replace the membrane of the filter. I caved and ordered this bad boy here.

Bluelab Truncheon Nutrient Meter is impossibly tough, an EC meter built to last a lifetime
Robust and reliable construction for long-lasting value
Key features include:

• Fully waterproof - not just water resistant
• Selectable measurement units so you can customize with your preferences
• Long-format design for mixing and measuring nutrient reservoirs simultaneously
• No calibration required and easy to clean

Everyday accuracy of the fundamentals
Providing quick and accurate readings at the click of a button. For conductivity readings, you can choose between EC, CF, PPM 500 (TDS) or PPM 700

Man I found some gold here, I'm off today drinking my coffee and found this for you. I had no idea manufactures instructions differ from scale to scale.

Manufacturer = Scale


Advanced Nutrients=700 scale

Botanicare=700 scale

CES/Cutting Edge Solutions=500 scale

Dutch Master=500 scale

Dyna-Gro=500 scale

FoxFarm=700 scale using dechlorinated tap water

General Hydroponics =500 scale using reverse osmosis water

General Organics =500 scale using reverse osmosis water

House & Garden =700 scale

Humboldt Nutrients=500 scale

Hydro Organics/Earth Juice =500 scale

Nectar for the Gods=700 scale

Rock Nutrients=700 scale

Roots Organics=500 scale

Rx Green Solutions=500 scale using distilled water

Soul=500 scale

Technaflora =500 scale

(copy and pasted from Enforcer's research)

I got the bluelab combometer coming...

.5 and .7 scale is just stupid, or maybe I am missing something...guess it is better to just go by ec.

I am in europe by the way...fingers crossed I will be ppfd mapping my tent, and popping sseds this coming weekend

Dankula said:

I got the bluelab combometer coming...

.5 and .7 scale is just stupid, or maybe I am missing something...guess it is better to just go by ec.

I am in europe by the way...fingers crossed I will be ppfd mapping my tent, and popping sseds this coming weekend

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lol.. yes better to go by EC sometimes just for that confusion. I think Blue Labs measures in 500. The combo kit might do the conversion for you. Would like to hear what you think of it when you get it. Keep us posted please.


Blue Lab = 500 scale

Milwaukee = 500 scale

Hanna = 700 scale

Oakton = 700 scale

Where did you get 500ppm from? Your test says the conductivity is 98.9 mS/m (EC) which would be closer to 50ppm no?

beefninja97 said:

Where did you get 500ppm from? Your test says the conductivity is 98.9 mS/m (EC) which would be closer to 50ppm no?

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It is ms/m no ms/cm...

When i got my meter I was looking at 1.2-1.2ec out of the tap...so lucky to have the RO which take it down to 0