We are a family of four and I have to change our water filter every 3 months because the water starts dispensing very slowly. Our neighbours have had theirs in for a year and water is still coming out at same speed. Is it normal to have to change every 3 months, we probably have average use. It's getting pretty expensive when I have to pay $50 for the filter every time. Anyone else have this problem?

Refrigerators - Electrolux - 25.9 Cu. Ft. Side-by-Side Refrigerator with Thru-the-Door...