• Reusing Greywater for Irrigation
• How Much Water Will I Save?
• Flotender Greywater Filters
• Expandable Surge Capacity
• How to Install & Service
• Frequently Asked Questions (FAQ)
• Product Information / Buy Now

Plumbing a Structure for Greywater

For installation, the Flotender Greywater Filter requires that the building has a greywater stub-out in place. Refer to the diagrams below for examples of plumbing configurations required for a few commonly connected greywater emitting fixtures.

Shower or Bathtub

The illustration below details one example of how the shower’s plumbing can be intercepted to accommodate the Flotender Greywater Filter.

Washing Machine

The illustration below details one example of how the washing machine’s plumbing can be intercepted to accommodate a Flotender Greywater Filter.

Plumbing Greywater in a New Construction

The easiest way to incorporate the Flotender Greywater Filter into your home is to have it plumbed for greywater from the beginning. Have a greywater stub out installed with your home’s plumbing system and be sure all desired greywater fixtures are connected. Refer below for instructions on how to connect the Flotender Greywater Filter to a greywater stub-out.

Installing the Flotender Greywater Filter

Once the greywater stub-out is in place, the greywater filter can be installed. Refer to the step-by-step guide below for more information. The following A pdf version of the installation can be downloaded here.

1-1 Choose a Location

For Below Ground Flotender™ Greywater Filter Installations:

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.

1-2 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.

1-3 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.

2-1 Connect the Overflow

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

2-2 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)

2-3 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.

3-1 Install the Drip Irrigation Line

Note: The following installation instructions on installing a drip irrigation system are only applicable to an above-ground drip irrigation system. The Flotender Greywater Filter is compatible with virtually every drip irrigation system on the market including sub-surface drip irrigation.

Place the ½” tubing for the greywater drip system through the center of the planting area. Put a tee in if you need to branch off to other areas, or use an elbow if you need to make a right turn. You have to work a bit to push the ½” tubing onto the fittings. Twist and turn the fittings into the tubing, being careful to not get any debris inside the pipe.

3-2 Install the Feeder Tubing

Use the coupling insertion Tool to insert the ¼” Self-Piercing Barb Connector into the ½” tubing. Be sure to insert the ¼” Self-Piercing Barb Connector where you want to branch off to a plant with the ¼” tubing.

Push the ¼” tubing onto the barb. Then run the ¼” tubing over to the plant and cut the tubing with a knife or pair of garden shears. Be sure to leave some excess tubing so you have room to adjust the dripper later. You can use the ¼” tees to branch off from the ¼” tubing so you can drip at two locations from one emitter. After you have run all the ¼” tubing, attach a cap adapter to the end of the ½” tubing and remove the cap for flushing.

Note: For recommended drip emitter distribution details see instructions included with the Flotender greywater drip system.

3-3 Flushing the System

Using a garden hose, add water to the Flotender Greywater Filter the water reaches halfway up on the Filter Basket.

For a greywater drip system with one line of ½” tubing:
Turn the greywater filter on and allow the water to flow through your system. Make sure that water is exiting out the ½” tubing. Place a cap on the end of the ½” tubing and make sure water is flowing from all the ¼” tubing.

For a greywater drip system with multiple lines of ½” tubing:
Turn the greywater filter on and allow water to flow through your system. Beginning with the ½” tubing at the lowest point in the yard, make sure that water is flowing before placing the cap on the end. Move to the next highest end point and repeat until all of the lines of ½” tubing have been flushed. While water is still running, inspect all ¼” tubing to ensure water is flowing from each line.

3-4 Install the Drip Emitters

Insert the drip emitters onto the ends of the ¼” tubing and use the “V” shaped stakes to place the drippers at the roots of the plants. Once all of the drippers are in place, turn the system on and make sure all of the drippers are operating as intended.

Note: Drip emitters can also be placed below ground. Flotender drip emitters include anti-siphon technology which allows for the emitter to be placed below ground without a concern of debris clog.

4-1 Install the Auto-Flush (optional)

Connect the optional auto-flush device to the port labeled “auto-fill”. Refer to the instructions included with the device for detailed information.

4-2 Backfill and Final Tasks

Final things to check after you install the greywater system:

• 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

Cleaning the Flotender Greywater Filters is simple and straightforward. Simply open the Access Cap, lift out the basket and wash off the debris.

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