Cahaba Water Co.
Our most complete system, built around your house.
Cahaba Whole Home Signature is built around your house. We start from what your water actually needs, then build to it. It can include larger carbon filtration, a softener sized to your hardness, our best drinking-water system, UV, pressure management, monitoring, and bigger plumbing to keep the flow up. Every part earns its place in your build. That is what the assessment settles.
How much water it has to handle is a separate decision — S, M, L or XL. We set that from measurements we take at your house.
- 01Carbon filtration, larger capacity
This is the one stage in every whole-home system we build, at every level. That is why it is drawn solid.
- 02A softener, if your water needs one
Broken outline. We specify a softener when we measure hard water and you want it handled, sized to the hardness we find.
- 03UV, where it fits
Broken outline. UV is one more barrier at the end of the system. It fits best where water is stored before it reaches your taps.
Signature
decided separately
of options we offer
and your goals
Here is how to tell them apart.
One sits under your kitchen sink. The other treats the whole house. They are different products at different prices, so we always write the full name.
Cahaba Signature 75Drinking water
Fits under your kitchen sink. It treats the water you drink and cook with. The price is published: $1,295 installed.
See Cahaba Signature 75Cahaba Whole Home SignatureWhole home
Treats every tap in the house. It is the treatment level on this page. The price is quoted after sizing: we measure your house first, then put the number in writing.
What it may includeThis page answers one of them.
Two separate choices. What you want treated, and how much water your home has to move at once.
Whole Home Signature answers the first one. The second is answered separately, by measurement at your house, and neither one stands in for the other.
Treatment level
What do you want treated?
Answered on this page. Cahaba Whole Home Signature puts the widest set of options on the table. We add each one only where your water and your goals call for it.
System size
How much water does your home move at once?
Answered separately, by measuring at your house. We look at the pipe that brings water in from the street, and we count the fixtures that really move water. We measure your pressure twice: with the water still, and with it running. Never square footage, home value or ZIP code.
A finished build carries both answers in its name — the treatment level, then the size.
Cahaba Whole Home Signature ‑ SYes, that combination is right. A small house with two bathrooms, where the owner wants everything: filtered water at every tap, softer water, our best drinking-water system, and UV. That is our fullest treatment level on our smallest size. Wanting more treated does not make a house use more water. How much you want treated and how much water the house moves are two separate questions, answered from two separate sets of measurements.
What a Whole Home Signature build can include.
Every part on this list is specified for your house. Your water and your goals decide what goes in.
Every row below is a part this level can include. What ends up in your build depends on your water, your goals and what we measure. That is why two Whole Home Signature systems on the same street can be built very differently.
Whole Home Signature names the options. Your house names the parts. If carbon alone does what you want, the honest answer is Cahaba Whole Home Essential, and we will say so. Every part in your quote arrives with the measurement that put it there.
One more barrier, where storage makes it worth having.
What UV does here: it adds one more step at the end of the system, after everything else has done its work.
Birmingham's water is disinfected at the treatment plant, and it meets every federal and state standard. UV here does not fix a problem. It is an addition to treatment that is already working, and we specify it where a house gives it something to do.
UV earns its place as a last barrier before the tap. It earns it most where water sits in a storage tank first. The disinfectant left in city water fades while water sits, and UV covers that gap. That is why it is standard on any storage build we do.
We specify units that watch their own lamp. A UV lamp fades slowly as it ages, so the monitor tracks output and tells you the moment it drops. The lamp rating follows the size decision, so you will see it in your sizing report.
And when a narrower one is the honest answer.
Two columns, both honest. We will point you to a narrower level when that is the right answer.
- You want every option considered, and a system designed around your house
- You want several things at once: better taste, softer water, better drinking water, one more barrier
- You store water before it reaches your taps
- You want your water pressure managed, or you want the system to report on itself
- Chlorine taste and smell is the whole concern. See Cahaba Whole Home Essential
- Filtered water, a softener if you need one, and a drinking-water system cover it. See Cahaba Whole Home Complete
- Only the water you drink worries you. A Cahaba under-sink systemDrinking water may be the whole answer
- You want a big system because the house is big. That is the size question, and it has its own answer
None of those is a smaller system. They are narrower answers to what you want treated. The size question is answered the same way in every one of them.
The widest set of options we offer, built around your house
Each part added only where your water, your goals or our measurements call for it
Sized to measured peak demand and pressure at your house
Not every component in every house. The level names the options, not the build
Not a rating of your home. The right level is the one that matches the goals in your house
Not a claim that Birmingham water is unsafe. It is disinfected, monitored, and meets the standards
Not a substitute for the utility's own treatment
One more disinfection barrier, and it watches its own lamp
Worth most where water is stored before it reaches your taps
Not evidence that city water is failing. It is disinfected and monitored, and UV here is an addition to that
We claim no certification for it beyond what its own paperwork states
A Cahaba premium under-sink system, chosen from the published list at its published price
Each system's certification wording appears on its own page, printed exactly as the paperwork states it and nothing beyond
We never move a certification claim from one product to another. A higher production number does not mean more is taken out
Questions we get about this.
Does Cahaba Whole Home Signature include every component you offer?
Is Cahaba Whole Home Signature the same thing as Cahaba Signature 75?
What size is Cahaba Whole Home Signature?
Does UV mean something is wrong with Birmingham water?
What does Cahaba Whole Home Signature cost?
Right level. Now the size.
Size is settled at your house, by measurement. We look at the pipe that brings water in from the street, the fixtures that move water, and the pressure we read. The size answer comes from those measurements, at any treatment level.