Sloan's AQUS Water Reuse System collects graywater from the sink, passes it through a sanitizing device, and transports it to a reservoir under the sink. When the toilet it flushed, the treated water in the reservoir moves into the flush tank for reuse.

According to Sloan, the AQUS can save up to 6000 gallons of water per year.

The AQUS system requires annual maintenance, does not cross with the fresh water system, and does not inhibit backflow prevention.

According to Sloan, the AQUS is compatible with two piece toilets from many manufacturers, including Kohler, American Standard, TOTO, Mansfield, Gerber, Eljer and Western.

The AQUS was listed by Sustainable Industries as one of the top 10 green building products of 2010.

 

AQUS graywater systems can contribute to LEED in the Water Efficiency credit category of the LEED for New Construction 2009 rating system.

• Water Efficiency (WE) Prerequisite 1: Water Use Reduction (0 points)
This prerequisite requires that the LEED project use 20% less water than the baseline calculation. Since graywater can be reused, such as for flushing toilets, the AQUS system could contribute to this prerequisite.

• WE Credit 2: Innovative Wastewater Technologies (2 points)
This credit aims to reduce wastewater and potable water demand. One option for this credit is to reduce potable water use for sewage conveyance by 50%, which AQUS can help to achieve.

• WE Credit 3: Water Use Reduction (2-4 points)
This credit is the same as WE Prerequisite 1, except the required percentage of water use reduction is higher. Projects can earn 2 points for 30% water reduction, 3 points for 35%, or 4 points for 40%.

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