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A reengineered water system

Posted by stressbaby z6 MO (My Page) on
Sat, Aug 4, 07 at 9:03

When I built my GH, I ran a line from our deep well so that I would have a supply of water. Our deep well water, however, is unsuitable for long-term GH use due to its TDS content/hardness/alkalinity. Since I built the GH, I have used RO water, generated using the well water, run through a pressure booster pump, 90 GDP RO system, and stored in a ~60 gallon deep well bladder tank. It worked, but it had its problems. Membranes are expensive. The back pressure from the tank limited my RO production and so the pump ran all the time...in 3 years I burned out 2 pumps. And it always burned me up to be working so hard to make good water when the rainwater just dripped off the roof of the GH. So, after getting inspiration from a couple of folks on another forum, I reengineered the whole system. I'm posting here so that it might help others considering building a GH redesigning their current system.

First I put gutters on both sides
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I removed a pane of glass and replaced with Lexan. I ran the gutter downspouts through the Lexan and into the GH. (I wrapped around the corner so that I didn't have to look at the greenish Lexan from my back porch!)
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I set up 3 44 gallon barrels inside. One is under the potting bench (foreground). One is where the old deep well tank sat (background). I plan on building a bench on top of the two in the background.
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The downspouts convert from schedule 40 PVC to a flexible tubing. I didn't want cold water in winter displacing the warmer water in the barrels in the GH. This way, I can remove the downspout from the barrels in the winter and divert the rainwater onto the ground. Buried in the floor of my GH are a series of perforated PVC drains which drain the water out and down the hill.
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I put sensors in one of the barrels. These control a solenoid valve which in turn controls the flow of water to the RO system. It also has the capacity to operate a pressure booster pump, but I haven't needed one so far. I put these sensors low on the barrel because I didn't want the system filling with RO water and then overflowing with rainwater. This way I always have the capacity to accept rainwater in the system...I do lose some "backup" water with this design. Here are the floats. The top one turns the valve off, the bottom one turns it on.
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Here is the RO system with a second 90gpd membrane. You can see the solenoid valve.
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All of the barrels are connected with tubing at the bottom. Each has its own shutoff valve, and there is a valve to shut off the entire water supply altogether. From there, I put on a filter and a check valve, shown in this picture.
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From there the water goes to a demand-delivery pump with 60 psi cutoff...then on to a 20 gallon bladder tank precharged to 40 psi.
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Now I have a much improved supply of good water. My misters deliver a much foggier mist with a pressure of 60 psi than they did at the weaker pressure in my old system, 35 psi. Plus my system holds much more water and the RO system won't be needed for much of the year.

I hope that this helps someone with their system and I welcome any comments.

SB


Follow-Up Postings:

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RE: A reengineered water system

Very nice setup!

It looks like you are getting enough sunlight because of nothing is shading the GH.

But do you find the large structural frames and the gutter blocking too much light?

dcarch


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RE: A reengineered water system

Nice Job!
I tried to follow the flow but ran into the picture's borders.
Karl


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RE: A reengineered water system

dcarch, I have Aluminet inside. CW at the time I built was that shade cloth outside would get shredded by my winds. I am reconsidering that position...

I don't find that the frame and gutters block too much light. The largest of shadows (from the eave/gutter and the ridge) move evenly across the GH because they are oriented north-south.

Karl, this schematic might help.
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RE: A reengineered water system

Nice pics but they don't have to be so HUGE. Those on dial-up will have to wait a long long time for them to download each time they try to read anything on this thread. Pics 300 pixels across would be much better for those folks. Or even an URL to the pics. Over 50% of us still have no access to cable or DSL.


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RE: A reengineered water system

That is a very nice setup.
Now if I can get it to rain in my part of town, I could replicate that setup lol.


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RE: A reengineered water system

The photos are great!
If you don't want to look at anything that's big enough to actually see some detail, don't open the thread.

I get tired of complaints about these things.
Two complementary words and the rest is just complaining.

I only got high-speed last January and up to that point the very fastest I've ever had, was 26.8K.
I spent years at around 14.4K to 24.6K
If I wanted to see something, it was worth the time to download it.
I didn't always complain and demand that you post according to my needs.
What about the close to(?) 50% that would actually like to see some details?


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RE: A reengineered water system

Interesting that many underdeveloped countries have higher speed connectivities than USA.

dcarch


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RE: A reengineered water system

I'm sure that I came off far too harsh about it and I'm sorry if I upset anyone.
It's just that I hear it over and over again, frequently directed at me. So, I'm a little touchy about it. ;~)

"...many underdeveloped countries have higher speed connectivities than USA."

I think that many of those countries are benefiting from much newer technology or have a smaller and/or less complex population distribution.
Getting anything upgraded here is far more labor intensive, expensive and invasive.
We won't tolerate the roads being torn up for long periods or our views being blocked, etc.
We still have some semblence of safety precautions and can't work for $100 a month.
We also finance the R&D that built those systems and help to put them into place.

It's just easier to put in place all of the new stuff without the old stuff being in the way! ;~)
I've lived in mostly rual areas, even when close to urban regions.
The phone lines are old and even in winds, everything flashes or otherwise becomes unstable.
I can't tell you how many times I've become angry and just unplugged the whole freekin' thing and walked away!
A good cocktail kept me from finding the sledgehammer!;~)

Scott


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RE: A reengineered water system

Really good looking system.


 
 


 

 


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