Clarification =.80-.90 m/L

….. basically lead drinking water pipes are a far more important public health issue .

We use 23% Fluorosilicic Acid of which one gallon weighs 10.56 lbs. , we try and keep our dosage between 80-90 mg/L. My main comment was concerning WaPo columnist Wen commenting on RFK Jrs latest crusade . If you had 100 semi tankers on the road, you basically be dosing them with a mop bucket of F-

Actual water plant worker here. Since the metric system is hard - for every 8 million pounds of drinking water we produce, we put about 30 pounds of fluoride in it.