make sure that the time is set correct. regen time in the middle of the night. don't run water during the regen time. I've had a lot of customers tell methey don't run water when it's regen'ing,all they do is flush the toilet. Duh,now you got crappy water in the lines. Not saying that you do this. Need more specefics,like how many people using the system? what is the iron content,hardness? to be able to help you set it up. basically there is a screw that holds the 40-90 brine draw/ rinse time in place. need to rotate the knob to see it. what is the size of the tank? that will tell you how high to set the float in the brine well. If you have alot of iron, thebackwash valve couldbe stuck and not opening. when you put it in the back wash section, and remove the plug on the back of the unit does it slow down? if so the plunger is still working, if not it needs taken apart and cleaned. There's alot that goes into a service call, and sometimes well worth it to get clean, clear water everyday.