Testing a Reduced Pressure Principle Backflow Prevention Device Assembly with a three valve test kit.
Пікірлер: 39
@heidizaccone64415 жыл бұрын
Jimmy your the best, thanks for all the help. Great Instructions!
@nesiansides71334 жыл бұрын
Failures usually caused by grit in the check cones, if bought new and fails. A) Manufacturers releasing faulty products B) onsite testing kits need collaboration requirements.
@JimmyBackflow4 жыл бұрын
Thanks for taking the time to view the video and submit a comment. The relief valve will discharge if the first check valve is fouled open with debris and the RPZ is in a static state, a common problem. Flushing before installation is always the best practice. If there is debris in the inlet line a strainer should be installed. Most state drinking water program regulations and public water system cross-connection control programs will require the test kit to be calibrated annually. The manufacture will specify annual calibration.
@robf4605 Жыл бұрын
No shit
@poundersforpresident604 Жыл бұрын
Very informative but please make one without the music. 😢
@JimmyBackflow Жыл бұрын
There is a video without music for testing the RP. Sorry, you did not like the music; I may remake the videos without music when I have time. I am presently working on other videos without music. Nonetheless, I hope you found the videos useful. Thanks for the comment.
@thesportsjerseyenthusiast7953 Жыл бұрын
Absolutely love the music can’t say it enough. Makes me want too test a backflow with class and style
@jeffvlisides15184 жыл бұрын
Jimmy, what test procedure are you using here specifically? It seems to have portions of several including a confirmation test on number two check. Nice addition but not mandated by either ASSE or USC. Some of your terminology is different than ours in Michigan but that is not a major in my opinion.
@JimmyBackflow4 жыл бұрын
Jeff, thanks for the comments. The test procedures used in my videos are commonly known in the industry as the “New England Water Works Association Three Valve Test Procedures.” They were first published in the 1973 issue of the EPA Cross-Connection Control Manual, using a five-valve test kit. However, since then, NEWWA has selected to concentrate on instructing individuals enrolled in the NEWWA backflow tester training on how to test backflow prevention device assemblies using a three-valve test kit. The NEWWA three-valve test procedures are listed in the fourth edition of the AWWA M14 Manual. The test procedures were recently revised to include analyzing the test results of backflow prevention device assemblies. The revised test procedures will be listed in the next edition of the AWWA M14 Manual. Copies of the test procedures are available through NEWWA Regarding the RP second check valve differential test, NEWWA feels it is necessary to not only backpressure the second check valve on an RP but to evaluate the condition of the second check valve spring by measuring the differential pressure across the second check valve. Measuring the differential pressure across the RP second check valve also assesses the presence of backpressure. Not sure why ASSE or USC does not require the differential test across the RP second check valve. USC states the differential test of the second check valve is optional. Both ASSE and USC state that the RP second check valve shall be equipped with at least a one-pound spring. How does one know if the RP is meeting the standards if the RP is not tested against the standards? If backpressure is applied to the second check valve and it is holding drip tight, the RP is providing protection, but is the RP meeting the standards.
@tapalmer9910 ай бұрын
Thanks so much for your video You've got great instructions without rushing through it I was going to build my own rig out of the differential gauge hoses and Associated fittings Can you recommend a website or video for doing that? Thanks again
@JimmyBackflow10 ай бұрын
Thanks for the comment. I have not encountered a video for making a backflow test kit, but I have tried unsuccessfully. The differential gauge is available, but purchasing a test kit in the long run was more economical. Also, the test kit would have to be calibrated. Getting used test kits and parts is an option that I have used.
@rmarty5504 жыл бұрын
Need to get my certification in Northern California, thanks for the help!
@josemanuelguzmanconcepcion5793 Жыл бұрын
Hi, We have to perform 5 year internal inspection on Backflow ?
@JimmyBackflow Жыл бұрын
It is state dependent. What state are you working in. Some states require internal inspections but only on testable devices installed for service protection. New Jersey regulations require a Physical Connection Permit be obtained by the owner of a facility where the physical connection installation is to be made with a community water supply (Physical Connection Permits are not required for private residences). Physical Connection Permit has to be renewed annually and requires each backflow prevention device covered by the permit to be tested quarterly and internally inspected annually.
@Drak7282 Жыл бұрын
Excellent video, needs better background music. 12 minutes of that is enough to make you want to jump off a building lmao
@connpiper2 жыл бұрын
Hey Jimmy, new to testing. Bought a couple bfps to practice on. Working on rpz, 3/4. Long story short, cleaned seals and seats on check#1 and relief. No drips when shut off downstream valve. When testing differential on check 1, relief opens when bleeding high side. Any help greatly appreciated.
@JimmyBackflow2 жыл бұрын
Not to worry. What is happening is you are diverting high-pressure water away from the sensing line which is keeping the relief valve closed when you open the high control valve on the test kit. Test cock number two is close to the sensing line. Close the high control valve and continue with the test.
@connpiper2 жыл бұрын
@@JimmyBackflow should have stated, relief opens after shutting high side after bleeding air. So test would still be valid then? Thanks for your time,help,response.
@JimmyBackflow2 жыл бұрын
@@connpiper If water did not discharge from the relief valve after closing the downstream shut-off valve, the first check is holding drip tight provided that the RP was in a static state. If after bleeding the air out the high side of the test kit and the relief valve discharged and stopped, fluctuating inlet pressure was the cause. Continue with the test.
@connpiper2 жыл бұрын
Thank you Jimmy.
@misterphoenix36843 жыл бұрын
thank you!
@TheDannytre4 жыл бұрын
Does the city require that all backflow preventers be tested every year?
@JimmyBackflow4 жыл бұрын
Thanks for viewing my videos. The plumbing code requires all testable backflow prevention assemblies to be tested upon installation, after a repair and annually. The states have different requirements as do the public water systems. Most will require the RPZ to be tested at least annually. You should check with the public water system to determine the testing requirements for backflow prevention device assemblies.
@LorenzKamo3 жыл бұрын
A+
@rickallen41387 ай бұрын
Had to go music distraction 😮
@JimmyBackflow7 ай бұрын
The purpose of the video is to educate, entertain, and engage. Distractions are everywhere, so put them aside and concentrate on what is essential. You could turn off the sound.
@JorgeRuiz-jk5vn2 жыл бұрын
I can't think clearly with the dum backround music. I can't listen to your instructions clearly. Wby is there music.
@JimmyBackflow2 жыл бұрын
I can see clearly now, the rain is gone I can see all obstacles in my way Gone are the dark clouds that had me blind It's gonna be a bright (bright), bright (bright) Sun-shiny day. (Johnny Nash) I like music and my purpose is to educate, entertain and engage. if you watched the complete video, you would have noticed that at the time of the test, the music was muted. it is possible to learn how to test a backflow preventer by just watching without the sound. Just pay attention to what is being done. I will provide you a copy of the written instructions if you provide me with your email address. Jorge, sorry you did not like the music.
@JamesBond-kb1wl3 ай бұрын
I was just about to leave the same comment. Ruthless music at that. Makes me suicidal
@nicolassebastianibarraparr47074 жыл бұрын
Que , buuuu
@robf4605 Жыл бұрын
This is why ABPA is the best. These testing methods are garbage.
@JimmyBackflow Жыл бұрын
Rob F. Please provide a more detailed statement regarding your comments. What are your qualifications for making such a statement? All test procedures measure the pressure loss across the check valve. The only difference is the sequence by which the tests are conducted. In the video, the first check valve differential is measured, the second check valve is back pressured, a validation test is preformed, and the relief valve is opened by introducing pressure into the zone. Also, which is not conducted by ABPA is the differential test of the second check valve. ABPA does the same but in a different order. I suggest you read up on how backflow prevention device assemblies are tested to confirm reliability. Let me know if you would like further training!.
@robf4605 Жыл бұрын
@JimmyBackflow guess you're not familiar with abpa. Nor with the terminology. Been a tester in the city of sioux falls for over a decade along with asse, Iowa and Nebraska specific. Also having no problem reading USC cross connections 9th or 10th edition. You should try multiple classes from multiple providers. Quit being so close minded. I watched your video and just felt a little sorry for you. Have a good one.
@JimmyBackflow Жыл бұрын
@@robf4605
@JimmyBackflow Жыл бұрын
@@robf4605 Rob, not sure where you are going with this, but you need to be more specific as to comments. Pay more attention to the testing aspects and less time criticizing what you do not know. Stop guessing! Read page 255 FFCCCHR 10th addition. The difference is the sequence of the tests. I am very familiar with all certification programs and provide instructions in all aspects of the testing methos taught by APBA instructors. I am very familiar with the methods stated in the USC Manual of Cross-connection Control. I provide instructions on all test methods in my training. I am not sure what you mean by being close minded because I am not sure what your problem is with the video. Please in the future provide constructive criticism --- I am not interested in your nonconstructive opinions. As you suggested, --- I have attended training from other certification programs and held certifications from several states and certification organizations. (Been around for a long time) The method in the video is taught by trainers throughout the New England states, NY, PA, and NJ. This method is listed in the AWWA M14 Manual and follows ASSE 5000. Why are you feeling sorry for me? (Strange statement!)
@robf4605 Жыл бұрын
@JimmyBackflow lol, it's testing backflows. Possibly the easiest thing I've ever come across that you can get paid for. I'm just giving you shit. Just keep doing what you're doing bud.