I'm thinking if a couple unions would have been used it could be taken apart again without cutting and you wouldn't have had to cement the one part without the quarter turn.
@neilconstantino309
5 ай бұрын
Can anyone tell me all the tools including PVC elbow joints and primers used etc.. My backflow cracked and I’d like to replace it myself. Thanks! For reference, I have a 1 inch BFP.
@timdelaney7371
Жыл бұрын
Thanks for the video - well done. Im about to replace the two ball valves on my FEBCO 765-1. They both split in the recent freeze. Question : before i order the two ball valves -what size are they ?? I assume they 3/4 inch but want to make sure before i purchase. Thanks again for the video and look forward to your response.
@DrTMathAndMoreOnline
Жыл бұрын
Mine are 1 inch but you may have 3/4 inch.
@larryconover3925
2 жыл бұрын
gotta question. it usually says the backflow preventer must be higher than the highest sprinkler head to work properly. My sprinklers are lower than the Backflow preventer but my DRIP EMITTERS on parts of my system are HIGHER than the Preventer. Is that OK?? those emitters are very low pressure.
@DrTMathAndMoreOnline
2 жыл бұрын
We are required by code to have our Backflow preventer checked every other year. You might confirm with your inspector. Mine never examines the lawn set-up.
@prawnstar9213
3 ай бұрын
I have this same problem.. they installed it against the wall. So I bought one a new reverser that’s the mirror image of the other and everything is a okay
@myaa5038
Жыл бұрын
What is the other shut off valve for? (the one that is not part of the PVB unit). I have an old system that has an assembly that looks just like yours, except that I have an AVB rather than the PVB, so it doesn't have the two valves that are part of the unit itself. I do have the other valve but it is old and frozen and now is leaking, so I will be replacing it, but I don't know what it is for. I know it's not to shut off water from the main line because that valve (on my system) is down in the ground about four feet.
@DrTMathAndMoreOnline
Жыл бұрын
I installed it years ago when I was having issues with the other two. I no longer use it.
@hgutierrez80
Жыл бұрын
Would this help with water hammer after each sprinkler valve turns off?
@falloutforever88
Жыл бұрын
No
@alexmoore5970
2 жыл бұрын
I hope you are reading the comments, I installed this back flow preventer, all it does is gush water from those 2 nozzles. (my set up) I have the preventer tee off the main water line, follow the arrow up and over to the water hose/sprinkler system, but once I open the vales all it does is gush water from those 2 nozzles. Do you know why? (I am a dyi-er and a total novice, any information is welcomed.)
@DrTMathAndMoreOnline
2 жыл бұрын
I have not had any issues. If you are taking about the two small valves on the side,... you can shut those off. Turn each screw perpendicular to the pipe.
@alexmoore5970
2 жыл бұрын
@@DrTMathAndMoreOnline thank you for the rapid reply. Yes those two valves. Number 1 gushes water whenever the system is on. I'll do as you say and let you know how it works out. Thank you again.
@hjamesinsv
Жыл бұрын
What is the make and model of the backflow preventer?
@DrTMathAndMoreOnline
Жыл бұрын
Febco 765, 1 inch. Main thing is to get the right size pipe diameter for your irrigation system.
@jasonlara
2 жыл бұрын
Does the main water (to entire house) need to be off for a full day??? Can this job be done without interrupting the water to the house?
@DrTMathAndMoreOnline
2 жыл бұрын
No. The main water to the house has its own shut-off valve....so there in no inconvenience there. The house pipes are copper, and the lawn pipes are pvc.
@jasonlara
2 жыл бұрын
@@DrTMathAndMoreOnline thanks so much for the reply! Would the shut-off valve be the blue handled one on the right in your video? Or should I be looking somewhere else around the house. I do know where the whole-house shut off valve is (thanks to you saying it's copper.) I'll probably have to do some searching.
@DrTMathAndMoreOnline
2 жыл бұрын
The shut-off valves you see around the backflow preventer (3) are all for the sprinkler system. The valve for the house is near our first spigot toward the front of the house. There is also one at the street for the house and the irrigation provided by the city.
@jasonlara
2 жыл бұрын
@@DrTMathAndMoreOnline Okay. I think I got it. I am wondering if I just turn off the system at the digital control would be enough to perform this replacement. I guess I just need to know where to turn off the water before I cut into these two pipes.
@DrTMathAndMoreOnline
2 жыл бұрын
It depends on your set-up. If you are replacing a shut-off valve to a sink or toilet, then usually you would shut the water off to the entire house. You should have a shut-off valve at the front of the house where the pipe from the street enters your house. My irrigation system is separate from the drinking water we receive from the city. Thus, I have one shut-off valve for regular water and one for the irrigation water for the lawn...these are located on my driveway. I simply remove the lid covering the hole and turn the lever a quarter turn to the right to turn the water off.
@hondofreeman2112
2 жыл бұрын
Can you upload a video showing how you remove and rearrange the fitting so it would face forward rather than facing the wall. You showed the after video of if reassembled but not the process video. If you can upload it that would be much helpful. Thanks you. Just tag me so I know when you upload it.
@DrTMathAndMoreOnline
2 жыл бұрын
Sorry, but I did not take video of that part. The main thing I did was remove the two shut-off valves, remove all the Teflon tape, and reinstalled them with new Teflon tape and a little bit of pipe dope. I just made sure that when I tighten them, the orientation was correct.
@hondofreeman2112
2 жыл бұрын
@@DrTMathAndMoreOnline what tool you use to remove the valves as they are on pretty tight. I tried using a channel lock but it hard to budge. I bought minds from sprinkler warehouse and it came just like yours. Orientation wrong.
@DrTMathAndMoreOnline
2 жыл бұрын
@@hondofreeman2112 I tried channel locks at first but could not do it. I used two large adjustable wrenches.
@EfrenPerez-uo2ms
25 күн бұрын
Febco PVB brand
@EfrenPerez-uo2ms
25 күн бұрын
You didn't release the air out of PVB tips nipple use screw driver open it water squirts your air gets out then close do it to both release tips then put black covers back after closing it 😉
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