Replace toilets with Ultra Low Flush Models, or retrofit with low flow flappers. Contact the Department of Water Supply at (808) 463-3110 or the Department of Environmental Management at (808) 270-7417 for more information.
Retrofit faucets with aerators, or consider alternative faucet types such as self-closing or automatic sensor controlled faucets.
Replace shower heads with low flow models. Contact the Department of Water Supply at (808) 463-3110, or the Department of Environmental Management at (808) 270-7417 to find out how you can get these for free.
Check for leaks! Use dye tablet or food coloring tests in toilets to check for hidden leaks. Check for dripping faucets indoors and out.