**Thoughts from The Mr:
So the Mrs. asked me to pen a guest blog about irrigation. Unfortnuately (for you), I don’t have her wit, brevity, or ability to use spell check. Still, I will do my best.
When we recently spent a week away from our home, we realized that one can go a long way towards having a green thumb by first having a wet thumb. Plants mostly want light and water, and, if you’re anything like me, it’s far too easy to provide the former and neglect the latter. That’s where your local home improvement superstore (or neighborhood hardware store, for that matter) can help...with automatic irrigation! Being an engineer, I’ll break irrigation down into arbitrary and meaningless categories
- Boring prerequisite stuff
- Timing devices
- The water “backbone” (I’d love to have a better title)
- Drippers, misters, and emitters...oh my!
- Tune up
Boring Prerequisite Stuff
First of all, there are likely to be many “code” requirements for irrigation systems of which I am unaware. Unless you have a particularly nasty homeowners association, it seems pretty unlikely that you’ll fall victim to the irrigation police. Still, it’s wise to understand if your neighborhood/city/state/region have any specific irrigation regulations of which they are particularly fond.
From first principles, the regulations mostly center around making sure that it’s not possible for water from your plants to inadvertently make its way back into the water main in the event of a loss of water main pressure. So, get yourself a backflow preventer (
http://www.amazon.com/EnviroDrip-Hose-Thread-Backflow-Preventer/dp/B0034YWADE/ref=pd_ts_hg_7?ie=UTF8&s=home-garden
Timing devices:
An important note: You don’t want to suspend too much stuff from your garden hose outlet. I ended up running a heavy duty short hose from the backflow preventer to the ground and then set up the timers on the ground. Make sure it’s a good hose if you do this, because it will be charged (under pressure) all the time. If it ruptures, there will be lots and lots of water on the ground...
Water Backbone
You can probably identify a reasonably straight line (or a few lines) that will get pretty close to most of your plants. The plan is to run a reasonably large “backbone” or “header” on this line, and then tap that line to get water to your plants.
If you have more than one timing device, make sure you get the right backbone to the right plants. I use mostly 1/2 inch tubing (
http://www.amazon.com/Irrigation-Premium-Grade-Polyethylene-Tubing/dp/B0035M3KCK/ref=pd_sbs_ol_1), for which many fittings are available: T (
http://www.amazon.com/Drip-Irrigation-Barbed-Poly-Tubing/dp/B0035LS97C/ref=pd_ts_hg_24?ie=UTF8&s=home-garden), elbow (
http://www.amazon.com/Drip-Irrigation-Barbed-Elbow-Tubing/dp/B0035LTL5G/ref=pd_sim_ol_9), cap (
http://www.amazon.com/1-2-Compression-End-Cap/dp/B0035XFWD4/ref=pd_ts_hg_23?ie=UTF8&s=home-garden), and brackets (can’t find a link...they’re available with all these other parts, trust me).
An adapter is available to attach 1/2 inch tubing to standard garden hose (3/4 inch female pipe thread,
http://www.homedepot.com/h_d1/N-5yc1vZ1xgc/R-100141505/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053). Oh, there’s a tool that cuts 1/2 inch pipe really well (
http://www.amazon.com/Rain-Bird-Landscape-Dripline-TC-1PK/dp/B000FK01A4/ref=sr_1_fkmr2_2?ie=UTF8&qid=1279767676&sr=1-2-fkmr2), but you can probably find a different way. Go nuts!
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Drippers, misters, and emittersr:
Tune up!:
You’ll want to monitor closely for the first few days and weeks to make sure that your system is properly balanced. I use a moisture sensor to see how all the plants are doing...probably best to check just before the next irrigation cycle is due.
Seems like the plants should be on the dry side of the scale but not dusty or anything. If all your plants are soggy, you might want to reduce the time on the timer. If they’re all droopy, you might want to add some time to all. If some are looking good while others are dry, you’ll want to use a larger dripper or mister on that specific plant. You can also use 1/2 inch T’s (
http://www.amazon.com/Barbed-Tee-Pack-50/dp/B00263C0RU/ref=pd_sim_ol_12) and put a separate dripper or mister in, if needed. Turn on each timer manually for a few minutes and make sure that all the drippers/misters are working properly.
For extra credit, you can install one of these
http://www.homedepot.com/h_d1/N-5yc1vZ1xgc/R-100157124/h_d2/ProductDisplay?langId=-1&storeId=10051&catalogId=10053 to fertilize your plants periodically. I’m sure you can figure it out.
I hope this helps. It’s a little bit of an investment up front in time and money, but really pays off with the ability to have lots of lovely plants that you know won’t be dead in two weeks!
The Mr.
** zentMRS here - Did you enjoy The Mr's info? He's wicked smart. He'd be happy to answer any questions you might have. About irrigation or other stuff. (He didn't say that exactly, but I figure he will if you ask...) In the meantime, check out
An Oregon Cottage for her weekly Garden Party.
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