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#1. Greywater pipes can only be cost-effectively arranged during construction.
- Shower, tub, and bathroom sink drains are normally connected to toilet pipes within a few feet in existing buildings.
- Pipes in exiting slab floors can never be tapped without cutting the slab, an extremely expensive endeavor.
- Greywater from upper floors is combined with toilet water before the pipe comes down the wall, making it all sewage and unusable.
- Last, the laundry drain is usually far from showers, making it costly to capture both these key sources of greywater.
#2. Most existing homes already have a viable irrigation system.
- It’s not legal, smart, or even practical to retrofit greywater into an existing irrigation system.
- And you probably won’t want to buy another irrigation system if yours already works.
- Finally, an established landscape has to be torn up to install the underground drip irrigation required by law.
#3. Homeowners who try to install a greywater irrigation system themselves need a lot of help.
- You’re probably not a plumber and you’ll need a lot of plumbing skills.
- You’re probably not a landscape/irrigation expert either, and you’ll need those skills as well.
- Without all those skills, you will make simple but costly mistakes.
- The amount of technical support required to help non-professionals install both the filter system and irrigation system is prohibitive.