So can someone verify my calculations?
Using 14-5-38 mixing 0.3lbs per 50 gallons gives a npk ppm of 110-15-200?
Then adding 45g of mkp to 50 gallons of water should add about 50-50ppms of p-k?
For total of 110-65-250?
Pretty Close to it
110-71-314 (P205/K20) per gal. K is higher then you thought tho