Out of all the videos i've searched for to explain what the heck is a backflow safety valve. this one is the ONLY one that nails it with it's instructions and how it works. ThaNk you so much for satafying my 1am curiosity.
@ridgerunner4420
Жыл бұрын
This was an excellent presentation on how these devices operate and what happens when they are compromised. Thank you for putting this together!
@danieldunn6329
Thank you for providing and explaining this information. Clear, informative and helpful.
@alnaharaimruiz1518
7 жыл бұрын
thank you Jimmy for the video
@JohnBaker3000
Жыл бұрын
Perfect explanation. Thank-you!
@umeng2002
4 жыл бұрын
Very clear explanation
@davidrieth8037
7 жыл бұрын
very nice video
@winstonsaxonsdad
2 жыл бұрын
I have an older irrigation system installed at my home. I have access to the outgoing pipe to the sprinkler in the basement. From there, it goes to a free-standing verticle PVC pipe with a sill cock on it, and on top of that is a schrader valve, that the irrigation companies uses to blow out the water before winter. There is no backflow preventer installed. My question is this. Since it appears to install a backflow preventer, I need access to the outgoing water line. I do have that access inside the basement but on the outside, if I were to install the backflow preventer there, I believe I would have to dig down to get access to the pipe after it leaves the sillcock and heads to the valve box. Is that correct? I don't believe I can install it on the vertical free-standing PVC pipe since not only does water come out there, but also the air pressure is attached there to clean out the irrigation lines. I have seen screw in backflow preventers but not sure that would work. Any suggestions would be appreciated. Thanks
@xKCphillipsx
do the check valves close with the supply open and #2 shut off closed? I have one spring with 1lb force--> I have 10 psi coming in--> 1 pound lost while overcoming the spring ---> I now have 9 lbs on the downstream side of the check.
@eng.mohamedsaalan8395
I am searching about double check valve we can use it with Sulphoric acid 98.5 conc.
@manhhung1472
4 жыл бұрын
Can I ask you a question? Why are central hot water systems often using double check valves?
@JonnnyStorm
2 жыл бұрын
5:22
@goldenglory79
8 жыл бұрын
how do you reset the check valves when they trip
@jeffwrinkle575
2 жыл бұрын
What is the purpose of the TC#1, TC#2, TC#3 and TC#4?
@byakuyakuchiki9048
5 жыл бұрын
gd video
@JimmyBackflow
9 жыл бұрын
The training can be viewed at
@ironmagma
3 жыл бұрын
At
@chrisperkins3774
2 жыл бұрын
Asking to understand, not to criticize. If the water pressure is reduced as it goes through the check valves, why isn’t the non- potable pressure reduced in a back pressure, backflow condition?
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