We only support New Construction
and Major Remodels. Here’s why:

ReWater has been in the greywater irrigation business for over three decades. We’ve seen over and over that the three factors discussed below ruin virtually all retrofit/remodel possibilities.

#1. Greywater pipes can only be cost-effectively arranged during new construction.

  • As seen in this picture of a new residence under construction, shower, tub, and bathroom sink drains are connected to toilet pipes within a few feet during the original construction. These pipes are then buried in concrete and under dirt and are virtually impossible to access after construction.
  • If Greywater wasn’t separated during construction, the plumbing is always wrong for greywater reuse.
  • Pipes carrying greywater in existing slab floors can never be tapped without cutting the slab, an extremely expensive endeavor.
  • Greywater originating upstairs is invariably combined with toilet water before the pipe comes down the wall, rendering it all sewage.
  • Finally, the laundry drain is usually far from showers, making it costly to capture both these key sources of greywater. By itself, laundry is only 25% of your greywater.

This is what greywater plumbing looks like coming out of the house before everything gets backfilled. An existing building's plumbing has none of that.

#2. Most existing homes already have a viable irrigation system.

  • It’s not legal, smart, or practical to retrofit greywater into an existing irrigation system. It’ll just make a smelly mess and eventually clog every type of existing irrigation system.
  • Even if you can capture enough greywater to justify the effort, you probably won’t want to buy another irrigation system if your system already works.
  • Finally, even if you can capture enough and you’re willing to buy a new irrigation system, established landscapes have to be torn up to install the underground drip irrigation required by law for greywater.

Most existing homes already have an irrigation system in their landscape. Whether sprinklers, rotors, micro spray, or drip, it's not underground drip approved for untreated greywater.

#3. Homeowners who try to retrofit a greywater irrigation system themselves need a lot of help.

  • Homeowners usually aren’t plumbers, and you’ll nee a lot of plumbing skills to rearrange the plumbing inside your home.
  • You’re probably not a landscape and irrigation expert either, and you’ll need those skills outside your home.
  • Without both sets of skills, homeowners repeatedly make simple but costly mistakes.
  • The amount of technical support required to help non-professionals correctly install both the filter system and the irrigation system is prohibitive. it is an unfortunate truth.
It all makes sense to a plumber...