AWWA REUSE52144

In many locations, dual distribution systems have been constructed to deliverreclaimed water for nonpotable uses. Most often these uses are associated withlandscape and residential irrigation. Clearly there are other domestic waterdemands such as toilet flushing which do not require potable water. To date,however, few other nonpotable water demands in the residential sector have beeninvestigated. This is primarily because of the cost of new plumbing to providereclaimed water within residential homes and the understandable concern aboutpotential cross connections. At the same time, it is well recognized thatopportunities to conserve potable water do exist within residential homes. TheCity of Altamonte Springs, Florida conducted a pilot study in which a residentialhome was plumbed to use reclaimed water for toilet flushing. The home wasequipped with two toilets and automatic lawn irrigation system. For the testhome, a potable water meter records water used in the sinks, showers, and laundrywithin the home; a reclaimed water meter measures flows for toilet flushing andirrigation. Records were kept of the material and labor costs associated with theretrofit. Based on this pilot study, average water use associated withresidential toilet flushing was 39 gallons per day (gpd). The use of reclaimed water for thispurpose could eliminate potable water use in toilets for a cost of $2.60/1,000gallons. The use of low flush toilets would be expected to conserve 21 gpd at acost of $1.45/1,000 gallons. Includes tables, figures.

Product Details

Edition:

Vol. - No.

Published:

01/01/2000

Number of Pages:

14

File Size:

1 file , 340 KB