Using Greywater for Irrigation!

by Pacific Vista Landscape Services

Diminishing water supplies is a world-wide problem. In the United States, with population increase and an increasing decline in water supply, the best current solution is a reduction in water use. To address this problem, many states and communities are imposing water use restrictions. In April, 2015, for the first time in the state’s history, California Governor Jerry Brown imposed an executive order for a 25% reduction in water use statewide. Restrictions to landscape watering is the most common. A great solution to reducing water use in landscaping is greywater irrigation!

WHAT IS GREYWATER?

Greywater is all wash-water waste generated by a home or business. This is water from the washing machine, the sinks, bathtubs and showers and can be re-used! However, toilet waste and waste from garbage disposals and dishwashers is blackwater which contains high levels of nitrogen and pathogens and cannot be used in irrigation.

GREYWATER CAN BE USED FOR IRRIGATION:

Yes, greywater can be used for irrigation; but the codes and regulations on this process varies from state to state. Californians, for instance, have used greywater irrigation systems illegally for many years. Due to these practices, the California Greywater Code was re-written with significant changes. This code designates three types of greywater systems:

Clothes Washer System: This is probably the most commonly used as it is the easiest to implement, but there are restrictions on its use. It can use only a single washing machine in a family dwelling, and must be a domestic, not a commercial machine. This system may only use gravity or the pump from the washing machine itself to irrigate the desired areas in the yard or garden. The washing machine system may use up to 15 gallons per day per person in the household. It does not require a construction permit as long as it does not require cutting of the pipes that exist.

Simple System: This system also serves a one or two family residence. The discharge of greywater is greater than the clothes washer system, and discharges up to 250 gallons per day. A construction permit is needed for a simple system.

Complex System: This is a greywater system that uses over 250 gallons per day, and also requires a construction permit. The simple and complex systems are subject to inspection and possible percolation tests until they are approved.To install a whole-house system is a fairly simple matter in new construction, but is difficult in existing buildings.

WHAT ARE SOME OF THE BASIC REQUIREMENTS FOR USING GREYWATER:

Two inch covering regulation: The irrigation system using greywater must be covered by 2” of some kind of material to avoid contact with the greywater.

Drip system of greywater irrigation: The drip system works the best with graywater irrigation. Spray irrigation is not to be used with greywater. Also, greywater is not to have run-off or ponding, and cannot reach any body of water or storm drain.

No irrigation of crops intended for human consumption: Greywater may not be used for this; and, in addition, human contact with the system should be minimized.

(To read the entire California Greywater Code, go to:January 27, 2010 (2007 CPC, Title 24, Part 5, Chapter 16A, Part I – Nonpotable Water Reuse Systems)

Pacific Vista Landscape is focused on water conservation. Re-using your greywater to irrigate your landscape can not only result in water reduction, but is a great way to keep a beautiful garden during drought conditions. Our professional team are experts with the latest irrigation technology and can implement a greywater re-use system for your property. We will even evaluate your current system for free! Give us a call and see how we can save you water AND money now and in the years to come!

California's New Water Regulations

Ponds and waterfalls must recycle water!

Due to California’s 'Mediterranean' climate, it is normal for the state to experience dry periods. However, in these past few years, scarcely any rain has fallen in California, which has lead to a severe drought. A drought occurs when an area’s precipitation decreases, which causes a water shortage. In an effort to limit water usage during our severe drought, statewide regulations have been issued this year.

Regulations are being enforced concerning water usage, and a violation of these rules could result in a $500 fine. Watering driveways or sidewalks is strictly prohibited, along with the watering of personal property IF it causes water runoff. You can still water, but there are regulations on how water can be used. For example, if you want to wash your car, the hose you use must have a shut-off nozzle and any ponds, fountains or other water features on your property must recycle water.

Example of water waste!

Depending on where you live in California, the rules and regulations vary. However, there are general rules that are enforced in most areas. You can only water outside two days a week during the winter, three during the summer, and during certain hours. These hours are in the early morning, late afternoon, and night. Watering during midday allows for higher evaporation and less ground absorption which is counterproductive. In severely affected areas, water usage is already limited to 50 gallons per individual in a household. Those who exceed the limits or have blatant water waste, are subject to a $500 fine as well as being charged 160% higher rates for water usage.

If the drought continues and people don’t make an attempt to conserve water, stricter water regulations will be enforced overall. An example of this would only being able to water one day of the week and more areas having usage limits and higher rates. The drought doesn’t seem like it will be over anytime soon, and to replenish water reservoirs and put an end to the drought California would roughly need around a foot of rainwater. Since it is impossible to change the weather, the only thing people can do to help is conserve water and follow the regulations that have been enforced.

We are here to help! At Pacific Vista Landscape Services, we are experts on irrigation and drought resistant landscaping, read more here:
http://landscape-and-property-news.blogspot.com/2014/03/smart-irrigation-save-water-money.html 
There are also rebates programs that can help mitigate the cost for changing lawns to drought resistant landscaping and updating irrigation systems covered here:
http://landscape-and-property-news.blogspot.com/2013/12/a-greener-landscape-re-landscape-with.html
Call us for a free irrigation evaluation and let us help you save water and money AND have a beautifully landscaped garden!

Protecting Our Water Supply: Backflow Prevention in Los Angeles and Ventura Counties

by Pacific Vista Landscape Services

Protecting the public water system from contamination is essential for the safety of our

Aqueduct in California

water supply. Cross-connections of pipes between the public water system and private water systems can lead to backflow issues in which untested and possibly unsafe water goes the wrong direction due to backpressure, and can contaminate the public water supply system. To protect against this, there is a Backflow Protection Program by the Los Angeles Department of Water and Power, (LADWP.) When backflow protection is necessary, customers are required by the LADWP to have an approved backflow prevention assembly installed and tested annually by a certified company like Pacific Vista Landscape Services.

As explained by the Los Angeles County Waterworks District, "A cross-connection is any connection between a safe drinking water system and any other untested water source, system, or equipment that may contain unsafe substance. LACWD’s public water systems are designed to keep water flowing in one direction—from LACWD’s water main to the customers’ connections. When an undesirable condition known as backflow occurs, water is allowed to flow in the opposite direction and may bring contaminants or pollutant into the public drinking water supply through a cross-connection. 

Backflow is caused by a backsiphonage or a backpressure condition in the public water system. Backsiphonage may occur when the pressure in the public water system drops below atmospheric pressure and creates a vacuum that may pull unsafe substance into the public water supply. Backpressure may occur when the pressure from a private water system becomes greater than the pressure in the public water system. This difference in pressure may allow unsafe substance from the private water system to enter the public water system. Approved backflow prevention assemblies are designed to prevent backflow of contaminants or pollutants from entering the public water systems."

Pacific Vista Landscape Services is proud to be certified in installation, repair, and testing of all approved backflow prevention assemblies in Los Angeles and Ventura counties. We offer low rates to our clients with backflow requirements and also specialize in custom protective cages for the backflow assembly, repairs to existing devices, and offer a free annual reminder for testing. Emergency and after hour service is also available.

Call us today for installation, repairs, and testing by our professional, certified backflow prevention service team and let us ensure your property is in compliance with LADWP's Backflow Prevention Program!