There’s a great deal of attention on water conservation and smart water use, especially in areas of the country where rain or snowfall are below normal levels. Here are some tips to using your old spa water wisely.
The water in your hot tub can be recycled for use around your home, decreasing the amount of fresh water you have to pay for. It is critical to understand the proper uses for grey water and to know about any laws that may exist where you live. Many states and cities are beginning to encourage the use of grey water for limited purposes.
In some California cities where drought conditions are severe, communities are beginning to recycle all waste water and even turning waste water into drinking water. The City of Los Angeles has been recycling waste water for some time and seems to be leading the way. The Washington State Department of Health is also embracing grey water recycling.
Be sure to read up to understand all of the important nuances and safety measures when considering the recycling of grey water.
No. Spa water is classified as “grey water” or "sullage" similar to water from baths, showers and bathroom sinks. It is recyclable for limited purposes but it should never be used as drinking water or for washing dishes. Some hot tub water should not be used on plants unless it is tested and found to be free of chlorine and has a healthy pH balance. It is also important to check the local laws in your area.
Yes. Recycling grey water serves two purposes:
Some hot tub models can use salt water systems that may damage lawns or shrubs, so it’s not recommended for use on plants. In general you should not recycle the gray hot tub water for at least 3 days after you last added chemicals. Before you recycle spa water for any purposes you should check the local ordinances and laws in your area. If you live next to protected water lands, for instance, there could be unusual restrictions in your area about recycling gray water. Some communities outlaw it altogether so be sure to check the laws in your area.
There are some sacrifices to be made with hot tub water recycling. Most sources recommend waiting for three days after chemicals were last added to your hot tub, turning off the spa and allowing the water to cool. You certainly should not use your hot tub during this time. Chlorine should dissipate quickly, especially if you leave the cover off. After three days, test the water to make sure that the chlorine level is at zero. The pH should be between 7 and 8 to be safe for plants.
Most portable hot tubs drain by gravity from a valve at the bottom of the spa that can connect to a garden hose. Using the hose, you can apply the water where it’s needed directly, however, it only works if you’re level with the hot tub or downhill from it. You can also use the hot tub drainage hose to send it to a storage container of some type. Depending on the size of your hot tub, finding the right storage container could be a challenge. You can always collect water to be recycled in buckets that are easily moved to areas of use. If you are going to store grey water over a few days then you will need a much more complex system of water storage.
You can also purchase an inexpensive submersible pump for $50 to $100 (make sure it connects to a garden hose where the water comes out or has an adapter). With it, you can pump water into storage barrels or apply it directly to the task at hand.
According to the website Greywateraction.org, grey water should not be stored for long periods of time without more complex storage conditions and treatment. Unless you are willing to become deeply educated on the subject, recycled grey water should not be allowed to sit for more than a few days. Grey water that sits without proper storage or conditioning turns into black water which can smell badly and be dangerous to your health.
Recycled hot tub water can be used in a variety of creative ways, such as…
We do not recommend using your old hot tub water on your vegetable garden or any other edible plants.
Potentially, yes. All recycled water uses are ultimately governed by local jurisdictions, and those take precedence over any of the above suggestions. Be sure to throughly research the laws in your area. Communities in coastal areas, near rivers, streams or lakes, and especially protected wetlands often have strict laws governing the use of grey water. The fines and damage to the ecology could be serious.
After using your hot tub water for months to treat tired muscles, relieve pain and help you rejuvenate, you can potentially get even more use from that water. And that makes your hot tub one the most efficient water users in your home.
Another consideration for water conservation is to ensure that you have a high quality energy efficient hot tub cover. A hot tub cover does more than keep the heat in. It also protects your hot tub water from evaporation when your hot tub is not in use.
WHAT DO YOU THINK?
As we learn more and more about water conservation efforts, we’d like to hear how you’re taking action. Are you already conserving or recycling water in your home? Would you make the effort to use recycled hot tub water for decorative plants that aren’t getting enough moisture?
We’re also very interested in what other uses you can think of for your recycled spa water. Please leave us a comment so others can take advantage of your ideas. Thank you!
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Energy Efficient Caldera Spas
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