So it seems that the source of the algae in the reflecting pool petty Democrats are overemphasizing in what they think is a political win is the practice of filling the pool from the Potomac river. That water contains a lot of phosphorous as CNN so kindly pointed out when they went whole hog and did a water test using an independent testing company. From my research aluminum salts can be used but the volume of water in the pool is 6 3/4 million gallons. If he used city water they’d say he caused a water shortage. No Dems, he doesn’t do his own plumbing. Stop picking or you won’t heal.