Erik won the good husband award this Valentine’s Day. He surprised me with my very own soda making machine. This is not a SodaStream–it’s better. It’s an industrial strength CO2 tank topped with sturdy dials and valves and whatnot, all sourced from the local homebrew shop. He’s going to do a how-to post soon (tomorrow maybe?) on how to put together the parts, and how to use it. So hold on for those details! Right now, I’m just going to gush.
I’ve used the purple bath puff on the left in the photo above to scrub my bathroom sink and tub for eight years. Eight years! It’s a little shocking now that I count back. (Puff n’ me, we’ve done a lot of scrubbing. Good times.)
I received this puff has part of a gift set of bath items. I don’t enjoy using puffs in the bath, personally, so decided to try it out on the shower scum instead, and found it worked amazingly well in conjunction with the vinegar, soapy water and baking soda I use to clean the bathroom. It didn’t hold dirt or get grungy. Only now, after all this time, has it started to deteriorate and leave little purple bits of itself behind after a scrub.
This is not a deep post — I just wanted to point out that sometimes we can make good use of things which would otherwise end up in the garbage. Purple Puff is finally going to the trash, and will live out its sad, eternal half-life compressed in a landfill, but at least it served a purpose for a while, and did some good work. While I try to avoid buying plastics myself, it feels right to make good use of the plastic jetsam which tumbles into our lives.
At this point I could switch to biodegradable cleaning implements–like cotton rags and loofah sponges (which you can grow, if you have a long growing season!) — but in the back of my bathroom cabinet I have another gift puff, a white one, waiting to be called into service.
Do you have any plastic recycling tales to share?
I really enjoy learning about technologies that are basic enough that I feel like I can understand them–and maybe even replicate them. The technology of Tudor-era in England is by no means primitive, but it also is not as complex and machine-based as the tech which takes off in the 19th century and accelerates so quickly into the present era. I would be hard pressed to explain how anything around me works–from this machine I’m typing on to communicate with the outside world, to the electric light burning beside me.
Bless the BBC for making Tudor Monastery Farm (a title which I believe would not fly on American television). This is a quiet series showing three historians/archeologists at play in the Weald & Downland Open Air History Museum, trying out some of the skills they’d need to be tenant farmers to the local monastery. It has some of the structure of a reality show, but it seems that no one really wants to go that direction much, so with the exception of a bit of camera confession about the urgency of getting the peas planted before Easter, there is none of that annoying reality show faux drama. Instead, it’s just full of juicy nuggets for the appropriate tech geek.
The series is on YouTube. I pray the BBC doesn’t take it down before I get to finish it.
In the first episode alone, they cover goodies like:
And that’s just the first episode. Ale and cheese, blast furnaces and sheep shearing to follow!
One last take away: Because my undergraduate degree is in art history, one thing that really struck me was how much everyone in this show looked like characters out of a Bruegel painting. If you know Pieter Bruegel’s work, you might remember how all his people have this particular stocky, stuffed, oddly jointed, funny-footed sort of look. I thought this was an artistic affectation. Turns out it’s just the way the clothes fit. Pieter, I did you wrong. You were just painting what you saw.
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 nutsETA 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.
Sudama bows at the glimpse of Krishna’s golden palace in Dwarka,. ca 1775-1790
Not to contribute to the dreaded analysis paralysis, but this Pintrest collection images of fantastical gardens– from medieval sources to contemporary artists–may inspire your own garden, or at least give you a good dose of winter inspiration. Well worth a peek. Thanks to BoingBoing for the lead.
