Blue lab conductivity pen

C

Coco-garden

Well-Known Member
Why is my tap water so low in ppm? This is a brand new pen so I know it’s not the pen and I have cleaned it and calibrated it?
 

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bam0813 said:
Do you have any filtration in the water system of your house
Click to expand...
No filtration just right out the tap. Also I’m deff gunna use ec just couldn’t get a reading on 500 ppm or ec. Now if I warm my tap water a bit to about 90 it reads at .1 ec
 
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