5.0
(559) 840-0883
Whole House Filtration

How Whole House Water Filtration Works

No jargon. Here's what actually happens to your water between the street and your faucet when you have a whole house system.

H2OGeneration H2OSeptember 26, 2026
Diagram of how whole house water filtration works at the point of entry

Point-of-Entry Filtration

A whole house system is installed at the point of entry — where the main water line enters your home, before it splits off to your faucets. That means every drop of water in your home passes through the filter first.

What Happens at Each Stage

A typical whole house system has stages, each doing a specific job:

  • Sediment pre-filter: catches sand, rust, and particles
  • Carbon filter: reduces chlorine, taste, and odor
  • Optional specialty media: targets specific concerns like iron or sulfur

Water is pushed through by your home's existing water pressure — no pump needed for most systems. The media does the work, and the filtered water flows to every tap.

What It Doesn't Do

Whole house filtration doesn't remove hardness minerals (that's a softener) and doesn't match the dissolved-contaminant reduction of reverse osmosis at a drinking tap. It's one part of a complete water solution, not all of it.

See whole house water filtration options for your home.

Frequently Asked Questions

A whole house filter is installed at the main water line. As water enters your home, it passes through filter media that captures sediment and reduces chlorine and other targeted contaminants before the water reaches any faucet.

Not Sure What’s In Your Water?

Schedule a free in-home water test with Generation H2O. We’ll test your water, explain what we find, recommend the appropriate solution if one is needed, and provide clear pricing before you decide.

Related Articles

Back to All Articles