We just had a 27'x54" agp installed 2 1/2 weeks ago with a sand filter the pump is 2hp......our pool was filled with creek water since we live on a well....it's was brown at first now it's a cloudy blue and it's driving me nuts I have had the water tested numerous times and every time they say the water has the perfect chemistry!! I just had the water tested this past Friday and it was showing very low chlorine levels they believe something is eating up all the chlorine I put rapid shock in and added de to the skimmer basket and then woke up this morning after turning the filter off overnight and the bottom was a brownish color which we vacuumed and it stirred everything right back up I'm ready to give up tonight I put 3 gallons of 8.25% bleach in.... I don't know what else to do I just ordered the tf100 test kit....please help I'm desperate!!! My kids want to have a pool party for their bdays the end of Aug so that's adding more pressure on me....any advice please