How to Install and Test a Back Flow - Irrigation Start Up

Watch out she's going to blow! Here's all the steps to install, test, and start up your irrigation system in minutes instead of paying someone else to do it for you for $80-120. Other backflow preventers go on in a similar fashion.
Here are the parts and tools related to this video:
Wilkins 34-975XL Backflow Preventer: amzn.to/3wmelKA
RK34-975XL Backflow Preventer Repair Kit: amzn.to/3ucuEIL
Silicone Grease: amzn.to/3yHy3mi
2-inch Crescent Wrench no longer available but these joint pliers should all work and are highly rated: amzn.to/349SslG
WARNING: This video is only for entertainment purposes. If you rely on the information portrayed in this video, you assume the responsibility for the results. Have fun, but always think ahead, and remember that every project you try is at YOUR OWN RISK.
Music: Select by Patrick Patrikios
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[@healthy673]

Exactly what I needed. Thanks!

[@MakeItorBreakItNow]

Glad my video helped you, will be turning on my system soon.

[@VictorSilva-rq4kz]

This should be titled irrigation backflow preventer install. A backflow test implies that you are testing the main function of this unit, which is preventing water that is inside the irrigation system (presumed to be contaminated) from flowing back into the drinking water system.

[@MakeItorBreakItNow]

Thanks for the suggestion.

[@yanxiachen1899]

Thank you. I have exactly the samething. Follow your instruction. No water. Do you know why?

[@MakeItorBreakItNow]

did you turn on the valve junction that taps off your main line?

[@yanxiachen1899]

@@MakeItorBreakItNow You meant the water switch? It is in the yard with a cover, yes. Thank you.

[@yanxiachen1899]

I hire someone to check it. Thank you very much.

[@MakeItorBreakItNow]

@@yanxiachen1899 sometimes that's the best approach. Sprinkler systems can be very complicated.

[@KiemNguyen7]

Hi, @Yanxia Chen. May I ask how did you fix it? I have the same exact back flow preventer but no water after I connected it. Thanks.

[@greatmk6292]

What if we put the backflow in reverse direction...

[@MakeItorBreakItNow]

that's a good question. I've never tried it. If the valves and ports were facing the wall, then that would make it harder to check for sure.

[@Kevin-yc9hy]

Then you wouldn't get water to anything because the backflow would be doing its job.

[@VictorSilva-rq4kz]

You tightened the fittings in opposite direction because they are on opposite sides - they are both right-hand threads.

[@MakeItorBreakItNow]

copy, thanks.

[@diogenes505]

This isn't a back flow test.

[@MakeItorBreakItNow]

This is a back flow preventer, the back flow test I think you're referring to would be a separate video.