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Old 05-15-2015, 12:33 AM   #1
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Installing Yard Hydrant


I am needing to install a yard hydrant on the back of my land. I've been watching some youtube videos and I think I get the general idea.

As far as I can tell it's just hydrant > 3/4" red brass street elbow > main water pipe. Then just fill around the hydrant base with gravel etc.

A few questions:

1. My water supply company installed a main line coming into my property made of black plastic (pretty sure it was 1/2"). It's pretty stiff and doesn't easily stay straightened out once unrolled. Can someone tell me what this material is called? I'm assuming it's a common material, so knowing what it's called will make future google searches easier.

2. The video I watched attached a 3/4" red brass street elbow to the hydrant then connected to the main water pipe. What part should I look for to convert from this brass elbow to the black plastic pipe?

3. Am I missing anything? Again as far as I can tell it's just hydrant to metal elbow to plastic pipe. Anything else?

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Old 05-15-2015, 01:58 AM   #2
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Installing Yard Hydrant


Best way to join Poly pipe, for a water pipe repair.

At shallow bury depths the hydrant is usually not very stable unless one of 2 things is done. 1) add a foot or two of rigid pipe at the bottom connection or 2) drive a T-iron post or re-bar, or a portion of, beside the hydrant to attach the hydrant to stabilize. That's just a couple of ways that's typical. You may have your own way.

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Old 05-15-2015, 09:52 AM   #3
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Installing Yard Hydrant


Thanks for the reply and the link.

I have a couple more questions:

On this link, it talks about adding a key stop and waste valve. What is the purpose of this? Is it really needed?

I also read elsewhere that I should put a backflow preventer on there. Is that the same as a key stop and waste valve or different?
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Old 05-15-2015, 01:01 PM   #4
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Installing Yard Hydrant


The backflow preventor is a check valve that keeps water from your hydrant line from being pulled back into the main line. It is required under most codes.

The keystop and waste valve is a shut off valve with a drain port in it. You want to be able to shut the hydrant line down separately from the main line. Being able to drain the line down will prevent freeze up damage in the winter.
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Old 05-15-2015, 09:31 PM   #5
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Installing Yard Hydrant


A link for your safety and information.
http://www.asse-plumbing.org/Article...20Hydrants.pdf
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