had an algae contamination in my filters, went out of town the door to system got open somehow, sunlight. I have a 7 stage brs system, ran bleach (1 tblsp) through entire system for 2 hours, replaced all filters. Flushed system for about an hour and line l on meter was showing 4 to 6 tds lines 2 and 3 =0. Problem is output water into the holding tank is unreal slow, am using a booster pump and it is at 83 psi. have checked all connections and no binds anywhere. When I flush it the water is strong as a garden hose. The output when going into the holding tank will sometimes stop altogether.. Water is well water source. Thanks for any help