Quote Originally Posted by mrxthethcman
Help whhy does my ppm go up each day, I started of on a reading of 18,and then check it everday.ifound that it has risen 1-2 ppm per day can anyone help
check your reservoir daily and if the water level has gone down but the ppm has risen you can tell that the water is being used either through evaporation or through transpiration faster than the nutrients are being used. this can be caused from temp problems or ph probs causing the nutrient to be blocked from the plant. if the water level goes down and ppm stays the same this shows plants are using their food correctly. when your water goes down but ppm has risen add water and adjust ph. if the problem keeps occuring u need to think about environmental factors that may be affecting it. usually through lack of old air going out and new air coming in hope this helps