question on ppm reading
 

hi ron

i have a question on ppm reading

what is the implication of a situation where the ppm reading increases as days pass while the water level decreases ?

thanks

taulava, tongo

ppm can rise over time from root mater and other small medium particles draining back to your tank. You also have to remember that although your ppm is correct it does not differentiate among the various elements in your solution so even you may think your solution is ok but it may have to much or little of an one element.
If their is any hint of a problem dump it and start over.