But is the 40278 model right for your home? In this 2,500+ word guide, we will dissect everything you need to know about this specific unit—its specifications, installation, maintenance, and whether it actually saves you money. First, a critical clarification for buyers: "40278" is typically a model number or a manufacturing SKU , most commonly associated with the Whirlpool® WHES40 Series or similar mid-capacity water softeners. (Note: Manufacturers update SKUs frequently; always verify the brand associated with 40278 at your point of purchase).
The 40278 hits the "sweet spot" for the average homeowner. It is more reliable than budget units and half the price of a commercial Fleck. However, if you have extreme hard water (over 30 grains), upgrade to a dual-tank or high-capacity Fleck. Is the 40278 Water Softener "Salt Free"? (No, and here is why you don't want that) Some marketing gimmicks try to sell "salt-free softeners" (Template Assisted Crystallization). The 40278 is not one of those. 40278 water softener
Rust turns resin beads into slimy, dark green mush. Buy a liquid resin cleaner from Home Depot. Pour it into the brine well. Force a manual regeneration. Frequently Asked Questions (FAQ) Q: Does the 40278 remove chlorine or lead? A: No. This is a water softener, not a filter. For chlorine taste or lead, you need a reverse osmosis (RO) system under the sink, or a whole home carbon filter before the 40278. But is the 40278 model right for your home