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More About Hawai`i's Acid Rain for Catchment Tanks
Hawaii Senate Resolution Supports Residential Rainwater Catchment Use Statewide
Recommendations for Catchment Users Due to Increased Volcanic Activity
Catchment Service Directory
Recommendations for County Re: Water Catchment

Recommendations for Catchment Users Due to Increased Volcanic Activity

If you live downwind, minimize ash and debris in your catchment water by taking the following steps:

-Temporarily disconnect your catchment system from the roof until rain has flushed your roof and any ash deposits. Don't reconnect the system until the deposits are washed off the roof and out of your gutters.

-Check your gutters, especially if they do not slope, as ash may collect in them. Clean out any ash deposits in the gutters to keep water from mixing with the ash and leaching metals into the catchment water.

-Use a free-standing or self-supporting canopy to cover mesh tank covers so less debris will get in

-If you do not have a first-flush device, add a stocking or other simple filter to the pipe where your water enters your tank. Check this filter regularly and keep it clean.

-Dissolve 1-2 boxes of baking soda in water and add it to your tank every 2-4 weeks to raise the pH of the water. This prevents copper pipes and lead from roofing nails, washers, roof paint (before 1978) or solder from leaching or flaking into your water. You can also purchase filters to remove lead and copper.

-Check all water filters regularly to make sure that they can still filter out debris. Keep extra sediment filters on hand for heavy ash fall.

These measures will help your water stay cleaner, which keeps you in better health. For more information or questions, please call us at 808-981-5199 or send email.

Interested in learning more about what do to for your catchment tank in response to Hawai`i's volcanic acid rain? Click here.

Please note: Emergency water spigots have been established throughout the island. If you believe the quality of your catchment water is questionable, use these spigots established by the Department of Water Supply for your drinking and cooking needs.

For other information on emergency preparedness, please visit:
-County of Hawai`i's Civil Defense information website at www.lavainfo.us
-Center for the Study of Active Volcanoes at http://www.uhh.hawaii.edu/~nat_haz/

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