Garden Update #2 for July 2011

Well, it finally happened. Our kale was eaten while we were gone for the weekend. And what was left was eaten again a few days later. I suspect it was the rabbits that we see almost every day, as I didn't see any new hoofprints in the garden. I'm disappointed, but it's my own fault really, I should have covered it with netting. So I've planted some more. It only takes 60 days to mature and is cold hardy should winter come very early this year. I happen to like kale a lot, so I planted almost four times as much as I had before.


What's left of my first planting of kale.
Another two weeks or so and it would
have been ready to harvest.


There is a lovely wilted kale salad that we like to make, so there is no need to worry that there will be too much. There is also some green fruit on our cherry tomato plants, which will go quite nicely in our wilted kale salad.

While I was working in the garden, I spotted fruit on the wild strawberry plants that cover a large part of our yard like grass. I tasted some, and they are quite tart--not at all desirable for eating. But they smell very nice and might make a nice fragrance for some homemade soap. We haven't made any soap yet, but would like to some day when the renovation slows down. I've been told that if I want to grow strawberries to eat, I need to get rid of all these wild plants because they will cross with my good ones and ruin my crop. Hmmm... more work to do. These wild plants are everywhere here.

Wild strawberries from the yard. These berries are very
small. That dish is the size of a small cupcake.

Resources
James Russell's Wilted Kale Salad recipe: http://therawchef.blogs.com/russell_james/2006/11/wilted_kale_sal.html

Our Water System

Many people, especially city folk who aren't used to living with a well, are intrigued by our water system. This post is to help them understand what I'm talking about when I mention our water tank.

This system was put in place before we bought the house, and it works reasonably well, allthough I would like to make a few changes to increase reliability and availability.

We have a relatively shallow well--only 75 feet deep with the static level at about 20 ft. However, the well, on average, produces only about 4 gallons per minute (as observed during a flow test during a winter home inspection). That's an average of 4 gallons per minute, that is not a continuous flow. In reality, we can pump about 150 gallons out of the well at a much faster rate before it slows to almost nothing, then resumes again for a minute or two a few minutes later. If pumped continuously, the flow will start and stop every few minutes. This is not ideal for on-demand water use in the home. Furthermore, the well pump requires 120V AC and draws quite a bit of current, making it not feasible to run the well pump off of the house battery bank.

To solve this problem, a previous owner installed a 350 gallon storage tank inside the house. The tank is filled via underground pipes while the well pump is powered by the generator. I actually plug a cord into an outlet on the generator to fill the storage tank. This takes about 20 minutes and I only need to do it about every two or three days, and only sometimes more frequently.


Our indoor water storage tank, next to our efficient washing machine.


To provide pressure in the house, a 12V DC pump pressurizes a small tank to 80PSI. When the pressure in that tank gets down to about 40PSI, the pump pressurizes the tank again to 80PSI. The pressure pump runs off of the house battery bank and provides adequate pressure for household water use at conventional water taps through out the house, including shower, toilets, sinks, washing machine, and outdoor spicket. Hot water is provided with a propane-burning instant (tankless) hot water heater which uses electricity only to light the propane and to power the thermostat. So far it has worked well.

Pressure pump and tank

I would like to make some improvements. The underground pipes are not deep enough to prevent freezing in the winter. This may be because there is a lot of granite in the ground in the vicinity of the house. But it's also because the water pipes enter the well above ground where there is definitely the potential for freezing. I'd like to have these pipes enter the well casing under ground. I'd then like to put a hand pump on top so that we can still get water if something should happen to the well pump.



The insulation on these pipes is no match for the cold
winters here. They need to be underground.



I'd like to replace the 120VAC well pump with a DC pump that can run on power produced by solar panels. That way when the generator breaks down again, we can still get water out of the well.

And finally, I'd like to add some sort of water-level detection mechanism that can turn the well pump on when the water level in the storage tank gets to a certain level and then off again when it's full.

Garden Update for July 2011

feOur tiny garden is coming along quite nicely, except for the peppers. I think they might need more water or something as they always look a little dry by the end of the day. The cabbage looks like it will be ready by the end of the month or so, and the kale is coming in quite nicely.  The tomatoes have flowered. I really haven't put in much effort into the garden at all. Just watering every day and fertilizing once a week.

I'm really happy that I haven't had to do any serious weeding yet. I know this will make some of my gardening friends jealous, but I'm pretty sure that whoever tended this plot before me must have done a good job of getting rid of weeds. I suspect that when I expand for next year, I may have more weeding to do.

The netting seems to be working. I have seen deer hoof-prints in the garden, and I see deer around the house frequently, but so far, nothing has been eaten in the garden. Maybe we are just growing foods that deer don't like? At any rate, I'm happy the deer are not being pests this year.

Here's a picture of our cabbage and kale:


Cabbage and kale are doing great!



Returning to the 21st Century By Installing a Washing Machine

Almost any washing machine can be used off-grid if you have a good generator. Some washers are more efficient than others, though, and if you want to run the washing machine off the solar panels, more efficient is definitely better.

There are a number of options for washing clothes off-grid, and I'll talk briefly about each of them:

• Fully manual: This includes beating against rocks in a creek (your downstream neighbors might not appreciate this, so not recommended), washing in a tub with a scrubber, the old plunger-and-five-gallon-bucket... You get the idea.
• Wringer washers: I hear these are pretty reliable and quite efficient with water, especially if you do multiple loads using the same water, starting with the least soiled clothes. These machines are typically obtained (well) used, but they are making a comeback and are being manufactured again. They are available with hand-powered or electric wringers.
• Conventional late 20th century washing machines: Most were not built with energy- or water-efficiency in mind. If you want a conventional washer, get a modern one.
• Staber washing machines: These come highly recommended by those living off-grid because they are efficient and easy to repair. However, after reading user comments on the web, it seems to me that they need more repairs (easy or inexpensive as they may be) than a washing machine should need. They also cost more than modern washing machines. If sustainability is important to you or you are so remote that it could take a long time to get a replacement part, seriously evaluate this option.
• Modern high-efficiency washers: Today's front-loading (and even some top-loading) washing machines are very water-efficient, and many are very energy-efficient, too. These modern washing machines do cost more than the least expensive models available, but the water- and energy-saving features pay for themselves in very short order when living off-grid.

We felt that the positive aspects of a Staber washer did not justify the expense for our situation. We opted for the most energy efficient front-loading washer available at Home Depot, which turned out to be an LG WM2140CW. This machine (or previous years' models) was rated highly by users and seems to be quite reliable. Should the washing machine fail we will resort to washing at a laundromat in town or we will use the five-gallon bucket and plunger. We also purchased the extended warranty because it covers power surges, and the store sales person assured us that any mishaps caused by running off a generator would be covered.

Our experience with the washer has been very good for the month that we've had it. Electricity usage is very low and I think I may be able to run it off of our soon-to-be-installed 460 watt solar array during the peak power period. Usually, motors don't work well with modified sine wave inverters like we have, but when started accidentally once without the generator running, it seemed to work just fine. It is possible to install a capacitor to smooth out the starting surge created by many motors. I haven't done this yet, but will investigate if it is needed after I get the solar panels installed. Water usage is also quite good, using about the same or less than would be used by a 10-minute shower. Another nice feature of this washer is its high-speed spin cycle which leaves most clothes pretty dry, reducing the amount of outdoor drying time required.

Water efficiency is also an important factor. Most people don't realize this, but more than one fourth of the energy produced in the United States is used to pump water. When you are off-grid, you need to consider the energy cost of the water you use. If you have a deep well and need to run a generator to pump water out of it, then filling a top-loading agitating washer a few times per load of laundry can cost quite a bit more in fuel than would using a front-loading washer which uses one fifth as much water as a top-loading machine. If you have more water than you know what to do with coming out of the spring uphill from your house, consider yourself blessed, you have some really cheap water. But for the rest of us, the cost of water is an important consideration.

Resources
Staber washing machines: http://www.staber.com/
LG washing machines: http://www.lg.com/us/laundry/index.jsp
Lehmans has lot's of off-grid appliances. Washers here: http://www.lehmans.com/store/Home_Goods___Laundry___Washing?Args=&view_all=&sort_by=