Installation and Service

Learn how to install and service a Flotender Greywater Filter.

Installation & Service

greywater recycling


Installation Overview

The following are directions for installing the Flotender Greywater Filter in an instant distribution configuration.

There are four steps in the installation of a Flotender Greywater system:

1. Separate the greywater form backwater plumbing & install the greywater stub-out
2. Install the Flotender Greywater Filter
3. Install the Drip Irrigation System
4. Backfill & Final Tasks

The actual installation of the Flotender Greywater Filter (step 2) is a straight forward process and can be accomplished within a couple of hours by either the homeowner or landscaper and does not require plumbing expertise. The Flotender Greywater Filter ships 90% pre-assembled and includes straight forward and detailed instructions for the remaining assembly.



1. Separating Greywater Sources

In order for the Flotender Greywater Filter to function correctly, the greywater must be piped separately from the blackwater. In addition a greywater “stub-out” must be installed. The stub-out can be plumbed to a utility room or outside of the building as the Flotender Greywater Filter can be placed either inside our outside of the building. .


install grey water system filter



2. Installing the Flotender Greywater Filter

Once the greywater stub-out is in place, the greywater filter can be installed. The following features an in-ground installation. Flotender can also be placed above ground or in a utility room.



2-1 Choose a Location

For in-ground greywater filter installations, excavate and place the Flotender Greywater Filter on 1 inch of compacted sand. Sand will protect the bottom of the tank from sharp objects and help in leveling as you install the greywater filter.


Location for Grey Water Installation



2-2 Connect the Add-On Surge Tanks

Note: If your greywater system does not an add-on surge tank, skip this step.

Place the Flotender Add-On Surge Tank next to the Flotender Greywater Filter as shown in one of the configurations below. For connection details, please refer to the instructions included with the Add-On Surge Tank Connection Kit.

Install a grey water system with dripGrey Water System Setup




2-3 Connect to Greywater Stub-Out

Connect the Flotender Greywater Filter to the building’s greywater stub-out using the included PVC pipe and flexible coupling.

Connect Grey Water System



2-4 Connect the Overflow

Extend the overflow to drain above ground, below ground or to the existing sewer or septic line.

install a grey water system overflow





2-5 Connect the Backwash System

Connect the 1/2” purple stripe pipe to the side barb on the tee filter for the Self-Regulating Back Wash System and then to the spray ring port on the greywater filter. (see next section for diagram)

install grey water system filter





2-6 Secondary Filter and Performance Indicator Connections

Install the secondary tee filter, connect the performance indicators, then connect the drip pipe to the barb on the tee filter. Refer to the illustration below:

install grey water system filter



3. Install the Drip Irrigation System

Use the port on the secondary filter labeled “to drip emitters” to connect the drip irrigation system. Please refer to the specific instructions provided by the drip system’s manufacturer. Flotender is compatible with both above ground and sub-surface drip irrigation.



4. Backfill and Final Tasks

Before backfilling around the Flotender Greywater Filter and piping ensure that the following have been completed:

- The lid should be securely fastened before backfilling around the Flotender Greywater Filter. Take special care to ensure that dirt doesn’t get inside of the unit. - Backfill around the drip system.
- Make sure all stainless steel clamps have been tightened before backfilling.
- Cushion the pipe with rock free dirt and compact the earth in layers during backfill
- Make sure that the terrain around the Flotender Greywater Filter is graded so surface water does not collect around the unit.



Servicing the Flotender Greywater Filter

The amount of maintenance required for the greywater filter varies depending on the type of greywater fixtures being installed and the amount that they are utilized. Typical service intervals range from once a month to once every 4 months. If washing machines are to be connected, service intervals will be closer to 1 month. If sinks, showers, bathtubs & sinks are connected the service interval will be closer to 4 months.


Cleaning the Primary Filter

To clean the primary filter, simply open the Access Cap, lift out the basket and wash off the debris.

Finish Grey Water System Installation


Cleaning the Secondary Filter

To clean the secondary filter simply unscrew the filter from its casing and clean the element and media with a standard garden hose.

Grey Water Recycling





Next: System Sizing
Select the Flotender Greywater System which best fits your application.
Learn More >








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