It is rare for a 2T boiler water treatment to be like this. If the medicine you are adding is a tartar inhibitor and trisodium phosphate, this situation means that the proportion of sodium carbonate and caustic soda in the antiscalant is inappropriate. There will be too little sodium carbonate and too much caustic soda. in a situation where pH is high and total alkalinity is low. The reason is there and you need to know how to solve it.
If your boiler is equipped with water treatment equipment (softener), this means that the total water quality hardness index of the softener is not qualified. If you are a small boiler without water treatment equipment, you can add sodium. carbonate. Increase the alkalinity of the boiler water. Only the alkalinity of the boiler water will increase, and the pH value of the boiler water will also increase accordingly.