How to Water Trees During a Drought

This is a practical follow-up to my scree last week on trees dying because no one is watering them. Thing is, we should be watering them, even if we’re really worried about the drought, even if we’re doing everything we can to save water. We need to invest in trees because they save more water than they use. They are our allies in this drought, and they are dying.

Now, I thought I was going to have to write up all this tree-watering stuff from scratch, but our friend Richard Hayden, the head gardener of the amazing Nature Gardens at the Natural History Museum of Los Angeles County, sent me a note with links to these videos produced by the Forest Service. I like these videos because they’re concise, and the info is solid.

Thank you, Richard!
Thank you, Forest Service!

The video at the top of the post is on watering mature trees, the one at the bottom about watering young trees–the two techniques are a bit different.

Also, you can find more learning resources at Tree People.

048 Toilet Talk

Screen shot 2015-06-03 at 7.10.24 PM

On this week’s podcast we discuss our new low flow toilet and the concept of humanure. During the show we mention:

If you want to leave a question for the Root Simple Podcast please call (213) 537-2591 or send an email to [email protected]. You can subscribe to our podcast in the iTunes store and on Stitcher. The theme music is by Dr. Frankenstein. A downloadable version of this podcast is here.

How to do fewer dishes and save water

telephone and glass of water

Erik’s outdoor office and his special glass.

This is just a little thing which we’ve started doing recently, but I really like it. Erik and I now have assigned water glasses and coffee mugs to use throughout the day. By reusing these glasses and mugs, we’ve really cut down on the amount of washing we do, and also save water, which is becoming increasingly critical in our never-ending drought.

We have very little cabinet space, so over the years I’d honed our glasses and cups to identical sets which stack neatly. This is great in terms of saving space, but the downside was that we never could tell one glass or mug from another, and so tended to just grab a fresh one whenever we needed a drink.  (As if we are going to catch cooties from each other!)

As a result, by the end of the day we’d have a ridiculous number of cups and glasses littering the house, considering there’s only the two of us. To remedy this, recently we each chose a unique glass and mug at the thrift store, and now use only these throughout the day. Basically, we’ve brought classic office practice into our home office.

This is one of those ideas which seems like a no-brainer, but which can easily not happen at all. I’m glad we’re doing it now.

I’m working on the same thing with plates. I have a wooden bowl which I use for most everything, but Erik is distrustful of wooden bowls–apparently he thinks they hold bacteria, since I don’t wash them with soap. I think he also finds them disturbingly hobbit-ish. So, for now, there are still multiple plates to wash. Maybe one day I’ll seduce him into Hobbiton and whittle his cutlery down to a wooden bowl, a big spoon, and a pewter mug. But in the meanwhile, we’re doing less dishes overall, and that is, and the high priestess of domesticity likes to say, A Good Thing.

Artificial Turf: Is It Ever a Good Idea?

Monsanto Astroturf ad

Another winning product from the folks at Monsanto.

In the midst of a drought, our local Department of Water and Power is offering a $3 a square foot rebate for residents and businesses who remove their lawn in favor of less water hungry plantings. Those dollars add up if you’ve got even a modest sized backyard.

But the devil is always in the details. While the LADWP has some very good information on lawn alternatives as well as training classes on water wise landscaping, why did they have to include “non-vegetative groundcover” a.k.a. artificial turf in the rebate program? And why did they landscape one of their own facilities with the stuff?

In this interest of keeping an open mind, I tried to think of circumstances in which artificial turf might be a good option. Maybe if it were used ironically? But I don’t really think its use can be justified. Why?

  • It’s a petrochemical product.
  • It will eventually break down and end up in a landfill or the  ocean.
  • There’s no wildlife benefit.

Practically speaking, it also gets really hot on a summer day and you’ve got to hose it down with water just to step on it. And if you have pets, it’s not easy to clean up after them on artificial turf.

And while we don’t have kids, I don’t buy the argument that kids need grass. I think kids would enjoy a garden that’s lush and a bit of a maze with places to play hide and seek. Same goes for dogs, really. They’re hard on grass, and do better with mulch. Kids and dogs and grownups as well enjoy the wildlife and rich scents brought in by diverse plant life.

As far as athletics are concerned, while there’s considerable debate on the subject, some studies have shown that sports injury rates are higher on artificial turf.

In short, I don’t think there’s an application for this stuff. And we certainly don’t need our government to incentivize it.

And just FYI, Monsanto developed AstroTurf.

Tippy Tap, Beta Version

tippy tap1

A tippy tap is a water-saving handwashing device developed for use in areas where there is no running water, usually fabricated out of simple found materials. Erik and I both love appropriate tech, and this is a really good example of the form. The tippy tap literally saves lives by allowing people to wash up after visiting the bathroom.

Erik included a tippy-tap, a rather fancy version of one, it turns out, in one of our link roundups.  I’d never heard of such a thing, and, intrigued, promptly fell down a deep YouHole watching tippy-tap videos.

The basic idea is that a jug of water is suspended from a pole or branch by the handle–so it can tip. A string is then tied to the top of the jug to act like a lever to create the tip. A small hole punched in the front side of the jug allows a thin, controlled stream of water to flow when the jug is tipped. To keep cross-contamination from occurring, you don’t actually touch the jug or the string to use it. Instead, the string which tips the jug is tied to a stick on the ground, which acts as a foot pedal, so the jug is tilted by foot action alone.

I thought it would be cool to have a tippy tap hanging in the garden for hand washing — better than spraying water all over with the hose, especially in these times of drought. It would also be a good handwashing station for camping.  So I made a beta version to test the idea. Long story short, it works well. I made a few mistakes and want to work out some kinks. Also, for use in the garden, I want to design a more attractive tippy tap, perhaps using a gourd or ceramics.

For the how-to, and some links to other tippy tap instructions, read on.

Continue reading…

Free Laundry to Landscape Plans

LaundryToLandscapeDiagram

Judging from our blog comments, the drought here on the west coast has people thinking about greywater. We’ve blogged about it many times before, but it’s worth repeating. Greywater expert Art Ludwig has excellent free plans on his website for putting together a laundry to landscape greywater system. I put this same system in at my neighbor Lora’s house a few years ago and just finished replacing our older greywater system with the one on Ludwig’s website.  It’s easy to install, inexpensive and legal to do without a permit in California.

Greywater Design and Installation Workshop

almaden reservoir car

Learn how to install the popular “laundry to landscape” (L2L) greywater system in this design workshop presented by Laura Allen of Greywater Action and Leigh Jerrard of Greywater Corps.

Laundry to landscape greywater systems are simple, affordable, and easy to maintain. With your own L2L system you can irrigate your landscape each time you do laundry, saving you water, time, and resources. Experienced instructors will lead you step-by-step through the design process, tailoring a system to fit your home. This system is legal to install without a permit, just follow 12 basic guidelines you’ll learn about in class.

Learn

  • How to design a system for your home and landscape
  • How to build a system- you’ll create a “mock-up” of a real system with real greywater parts
  • What parts you’ll need for your home
  • How much greywater you produce and how many plants you can water
  • What soaps and detergents are “greywater friendly”

Tour

  • Real L2L greywater system
  • Gravity “branched drain” greywater system from sinks

Date: February 22, 2014 – 10:00am to 12:30pm
Location: Los Angeles EcoVillage 117 Bimini Place LA, CA 90004
Cost: Sliding scale $15 to $40, limited work trade positions available

Register HERE

Bring: Photographs of your laundry room and landscape. Site plan of your yard.
For more information on an L2L system refer to the SF Graywater Guide for Outdoor Irrigation, downloadable HERE

Please join our mailing list to be notified of upcoming workshops.
A long-submerged abandoned car is exposed at the bottom of the now-dry Almaden Reservoir
(January 16, 2014. Photo: Michael Short, The Chronicle)

What laundry detergent should I use for greywater applications?

oasis

Edited 6/5/15

This post is getting long with amendments, so for the hurried reader, our findings in summary. Please read the longer post for details:

As of today, we are still only able back three products without reservation for use in greywater:

• Oasis Liquid Laundry Detergent
• Bio-Pac Laundry Detergent
• soap nuts

ETA 8/14: Also, it looks like Fit Organic Laundry Detergent is safe as well. Thanks, Judy!

Sorry folks, I know that’s not a lot in terms of choice.

The following eco-friendly detergents are often listed as greywater compatible, but we have reservations about them. We recommend you research these products more on your own, and consider your own greywater system as well as the specific plants and soil you are irrigating before deciding whether these should be used or not.

Ecos: Contains sodium coco sulfate

Vaska: Has a D+ rating on the Environmental Working Group’s product safety database.

Lifetree: Has a pH level of 7

Dr. Bronner’s liquid soap: Fine for greywater use in general, but it simply is not a laundry detergent–it’s castile soap. You can wash your clothes with it, but the results won’t be spectacular.

This is the original post:

When your laundry water is going to the soil instead of to the sewer (or a septic tank) you need to make sure that detergent is friendly to soil life. All of your basic, big brand detergents are a no-go for greywater.

Even the various eco-detergents, even ones marked “biodegradable”, are not appropriate for the soil because they are essentially salt-based (look for the word sodium on the label). They play well with aquatic life, bless them, and they’re a fantastic alternative to more toxic detergents if your laundry water is going to the sewer, but they aren’t good for soil microorganisms. Surely you’ve heard that salting the land is a bad idea? You don’t want to salt your garden.

It’s worth adding that the drier your climate, the saltier the soil, because there is not enough rain to help percolate it away–so if you live in a dry climate it’s even more important to be careful with salts.

Homemade detergents–the ones based on soap and washing soda–are also not an option, again because of their salt content.

Salt is always my first concern, but laundry detergents can contain a host of other ingredients you just don’t want in your soil. Here’s a list of things to avoid which I lifted from Brad Lancaster’s eminently useful site (he in turn, lifted them from the State of California’s Department of Water Resources) Check out that link to Brad’s site for more good info. on greywater detergents, and all things greywater in general:

According to State of California Department of Water Resource’s Graywater Guide: Using Graywater in Your Landscape [2], specific ingredients to avoid include:

-chlorine or bleach
-peroxygen
-sodium perborate
-sodium trypochlorite
-boron
-borax
-petroleum distillate
-alkylbenzene
-“whiteners”
-“softeners”
-“enzymatic” components

As far as I know with the information I have today, this leaves us with three detergent options. If you know another detergent which is specifically formulated for greywater use, please let us know.

1)  The first is a laundry detergent called Oasis Biocompatible, sold by Bio Pac. This is what we use. It’s a basic, colorless, odorless, super concentrated liquid detergent, specifically formulated for greywater use.  It works very well, but doesn’t have the bells and whistles of “whiteners” and “brighteners” found in grocery store brands. To me, this is a plus.  It is not found on supermarket shelves. I have seen it in some health food stores, but we order it online. This is not too bad of a deal because it is concentrated, so a gallon bottle lasts a long time.

I’ll add that sometimes it can’t be found online, and this is frustrating. I’d ask the folks at Bio-Pac to find some means to ship it directly to the consumer, as local sources can be hard to find.

2) Bio Pac Ultra Liquid Laundry Detergent is sort of a sister product to Oasis, and though I haven’t used it, I think it’s very similar. We’re going to do some research and report back on the difference between these two products.

2)  The final option is soap nuts. Soap nuts are the dried fruit of the soap nut tree–they look a little like a cross between a date and a hazelnut. They are full of natural saponins (soaping agents) which are released in the wash. These saponins have been tested and don’t harm soil life.

You just drop 3 or 4 of the nuts into a little muslin bag (which comes in the box), and throw that bag in the wash with your clothes. They activate better in hot water, so some people will opt to soak the bag in a cup of hot water first–like making tea–and then dump the water and the bag into the wash.  Other people stew the nuts in water and make soap nut tea, which can then be used like liquid soap, for both hand washing and laundry. There’s lots of info online about soap nuts if you poke around a bit.

I just remembered that I posted here back in 2010, asking for feedback on the nuts, and got lots of it. So you might want to check that out.

If you’ve never heard of soap nuts, the whole idea might seem strange. But remember, all soap really does is help water work better, and they release soap. The real washing power is the agitating water in your machine.

Incidentally, Oasis, Bio Pac and soap nuts are fine for HE washing machines.

ADDENDUM: Option #3:  Thanks to commenters Kay and Matt, I’m going to add a 3rd product to this list: Ecos  Laundry Detergent. It claims to be greywater safe, I checked the ingredients and saw no salts, and Matt says he’s used it for a year successfully. Sounds good to me! Also in the plus category, this Ecos seems easier to find in stores than Oasis. Addendum to the addendum: Ecos contains sodium coco sulfate which some folks do not consider biocompatible.

ADDENDUM 6/5/15:  I’ve been doing some more research on the topic, and sad to say, I have only negative results to add to this list:

Some greywater lists include Vaska laundry detergent. Unfortunately, it scores a D+ on the Environmental Working Group guide.  As far as I can tell, some of the low score is attributable to non-disclosure of ingredients, but still, it causes me concern.

Lifetree liquid laundry detergent is a bio-degradable product which is safe for septic systems, and which also appears on some greywater lists. However, none of their product information states specifically that it may be used for greywater, so I wrote to them. They kindly replied in some detail, explaining that Lifetree contains no salts, but it does have a pH of 7.

They recommended I consider the effects of that level pH on the area I am irrigating with greywater–and I liked this, because this response acknowledges the complexity of the issues. This pH may be acceptable in some situations, and on some types plants, but not all.  For us in the West, our soil pH is already quite high, so Lifetree is not a possibility for us.

Also:

Pure castile soap, like liquid Dr. Bronners, is okay for the soil, but it doesn’t really work as a laundry detergent. You can use it as such for the occasional load, but you will find your clothes turning grey with extended use. Sometimes, however, if I’m dealing with a musty or stinky load of laundry, I’ll put a squirt of scented Dr. Bronners into my machine along with my Oasis or soap nuts, since Oasis is odorless, and soap nuts have a bit of an organic scent (which doesn’t linger on the clothes).

Laundry additives:

You also need to be careful with laundry additives when your laundry water is going to the garden. No bleach, obviously. Bleach alternatives, like OxyClean, are also suspect because they are often based on sodium percarbonate. Check the ingredients and scan for the word sodium. If you see it, it’s best to avoid the product. For this same reason, no baking soda (sodium bicarbonate) either, or washing soda (a sodium salt of carbonic acid).

Vinegar is okay, lemon juice is okay, and I don’t see how small amounts of hydrogen peroxide would hurt anything, though I’d want to do more research if I made it a regular part of my laundry rituals.  I’m suspicious of the various specialty stain removers. If you’re just squirting one spot on a shirt, obviously it will be greatly diluted in the wash water, but really, who knows what is in these stain formulas? When you use greywater you really learn the meaning of “closed loop” — you have to live with what you put out there. So, the decision is yours in the end.

So how do you use your “nuclear option” type laundry additives? Read on, dearies.

The Importance of a Three Way Valve:

It is well worth the time to install a diverter valve by your machine which allows you to choose whether your wash water will go to the sewer or the garden. If you have one of these, you can do loads with bleach or what-have-you and send that water to the sewage treatment plant.

Also, if you are washing diapers, this valve is an absolute necessity. All diaper wash water should go to the sewer. Soil is a great cleanser, but you don’t want to push your luck by depositing fecal matter around your garden.

(Addendum here, too: I spoke a little too absolutely above. It is possible to reuse that water, but you need to do so very carefully.  Diaper water is blackwater, not greywater, and needs to be handled in specific ways  Perhaps we’ll do a separate post on that later.)

Finally, during periods of heavy rain you may just prefer not to send any more water to the garden, and this allows you to make that choice.

A few words about other greywater applications:

If you’re using greywater from your shower, most soaps and shampoos are okay. Though again, I’d remember the closed loop principle and try to use soaps and shampoo from the more natural end of the spectrum.  Again, good ol’ Dr. Bronners, soap or liquid form, is something I’d feel good about sending out to the landscape.

Bio Pac also makes a concentrated soap which is a sister to the Oasis Detergent called Oasis Dishwash/All Purpose Cleaner. This is an all purpose soap that you can even use in the shower. This would be a good product to use for more casual water recycling–so when you’re cleaning house, say, you can safely dump a bucket of dirty water outside and know that it won’t harm your garden.

Greywater 101

greywatertri

Survival Podcast intern Josiah Wallingford has started up a blog, Brink of Freedom, that I’m going to contribute to periodically. In my first post, Laundry to Landscape: How to Reuse Laundry Greywater, I discuss my own greywater system as well as the setup I installed at neighbor Lora’s house. Greywater has been one of the simplest and most rewarding projects at our homestead. And I’m looking forward to continuing the conversation over at the Brink of Freedom.

Netafim Tiran, a Greywater Dripline

In a lecture I heard recently, Leigh Jerrard of the Greywater Corp mentioned an intriguing product from Australia: a dripline compatible with greywater. Now, if you tried to push gunky greywater through conventional dripline it would clog in seconds. According to the manufacturer, Netafim Tiran Greywater Dripline gets around this problem because,

Each dripper has its own mini filter. When a contaminant attempts to enter the emmitter, it is rejected by the emitter and simply remains in the tube. The irrigation system should be flushed once a year, however anecdotal evidence indicates that flushing may only be required every 5 years.

100 meters of Netafim costs 100 Australian dollars excluding tax, or about .30 USD a foot. Not a bad price if it performs as advertised. Some quick Googling failed to turn up a US distributor. Root Simple reader Rachel wrote to point out Netafim’s distributor locatoer: http://www.netafimusa.com/wastewater/support/locator.

To use Netafim you need to add a filter as you do with every drip system. I could see this product working nicely with Art Ludwig’s Laundry to Landscape system.

If any of you have worked with Netafim, leave a comment.