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Table of Contents
- I would like to set my water softener settings per the manufacturer's instructions. What should I use for the number of grains per gallon?
- Where does my water come from?
- I am experiencing low water pressure at my residence or business. What could be the cause of the reduced pressure?
- I have discoloration in my water. What could be the cause?
- What is the hardness of my water?
- Does the City of Oxnard Water Division have backup generator power for major water system components in the event of power failure or rolling blackouts?
- What is backflow?
- Are backflow assemblies for businesses only or can they be found at homes and apartments?
- How do I maintain a backflow assembly?
1. I would like to set my water softener settings per the manufacturer's instructions. What
should I use for the number of grains per gallon?
Your water softener should be set between 17 and 21 grains per gallon.
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2. Where does my water come from?
The City purchases water from the Calleguas Municipal Water District (CMWD) and the United Water Conservation District (UWCD). CMWD is a member agency of the Metropolitan Water District (MWD) of Southern California from which it purchases State Project Water. The water supply originates in Northern California and is conveyed over 500 miles to Southern California through the State Water Project’s system of reservoirs, aqueducts and pump stations. To learn more, visit our Sources of Water page.
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3. I am experiencing low water pressure at my residence or business. What could be the
cause of the reduced pressure?
You could have a broken house shutoff valve, high mineral deposits in your water line, a leak in the water service line, the aerator may be plugged in the facet, or their could be a main water line break in the system. For typical water pressures in your neighborhood, visit our water pressure page.
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4. I have discoloration in my water. What could be the cause?
There could be a fire hydrant that may have been knocked off, the City is undergoing main water system line flushing, or the City may have scheduled a new construction tie in to the main system recently. The City of Oxnard Water Division will investigate.
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5. What is the hardness of my water?
The City of Oxnard range is 320 ppm - 400 ppm total hardness. This may be divided by 17.12 to obtain the grains per gallon.
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6. Does the City of Oxnard Water Division have backup generator power for major water
system components in the event of power failure or rolling blackouts?
Yes.
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7. What is backflow?
The term backflow means any unwanted flow of used or non-potable water or substance from any domestic, industrial or institutional piping system into the pure, potable water distribution system. The direction of flow under these conditions is in the reverse direction from that intended by the system and normally assumed by the owner of the system. For more information on backflow and assemblies, visit our Backflow Inspection page.
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8. Are backflow assemblies for businesses only or can they be found at homes and
apartments?
Backflow assemblies can be found at homes, apartments and businesses. Typically, backflow assemblies are needed for sprinkler systems, automatic dishwashers, and washing machines.
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9. How do I maintain a backflow assembly?
Backflow assembly maintenance is usually minimal. Annual certification lets us know what condition the valve is in. If the backflow assembly fails, it will need to be repaired immediately. To make maintenance easier, trim plants and shrubs 2 feet from the backflow assemblies.
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