Inquiry (采购产品): BACK WASHCONTROL 94B-4 Our three sand media filters were backwashing about every 10 minutes, we replaced the gravel and sand and the back wash frecuency is still the same. We wonder if the control needs some reprograming.We want to know also if the sand media can filter algae because we have algae growth in our water reservoir and it is getting very heavy in the green houses. **** Hidden Message ***** Antonio Gomez AZ 85365 USA Company: Green Heart Farms Title: Assitant Grower E-mail: eyescas@greenheartfarms.com **** Hidden Message ***** eyescas@greenheartfarms.com
