I am having trouble finding out what kind of power head and resin i have in my water softners. I believe the one is a Fleck 2510 with a tank that is 10"x 47" and the other is a Fleck 3000 series with same size tank, this tank has no brine tube hooked up. The water coming from well has 25 grains, 425 ppm hardness, iron 3ppm and ph at 8.9 and 40-60 psi , there is a sediment filter inline before softners. The softners are at least 15 years old , they were in the house when i bought it ,and the water from the softners is ok but feel like the resin should be replaced some time soon. There are 2 adults living in the house and 2 bathrooms. I contated the name on front of covers and asked about resin and they said it was a "special mix" and wanted to come out tear the head off and take a look, he also wanted to be sure my wife was there when he was there so we could make decision together. So if anyone can help identify sofners and the type of resin that might be used in them would be great.