Your videos have helped us a lot to learn so many things. These days, I feel TH-cam is not only a place to entertain watching random videos but also a great place to learn things of our expertise. I have learned more things on TH-cam than at my university. Unfortunately, we don't get any certificate for learning so many things. Keep making more videos...our blessings are with you.
I installed one in February, 2020, and it passed its first test yesterday. I was watching with a flashlight when the yellow gate floated up and closed. I celebrated with a beer. Keep it clean and it will work.
@@r828realty iI's necessary to unscrew the plug and flush out the muck with the hose a few times a year. Enough muck and the gate will stick in the open position.
@pwgroup If the valve is closed due to backflow from the sewer line you will not be able to discharge any water until the valve opens once again. The beauty of the Mainline is that if you are experiencing heavy rains and suspect your valve could be closed, simply open the access panel and look through the transparent top to see if the valve is closed or open.
@poohbearpost that's what we liked about it too. We always worry about the regular type of check valves getting stuck and causing a backup. Plus we liked the see-through access for checking and accessing it.
I have one of these installed. You have to clean it on a regular basis so it does not get clogged. Debris gets stuck in the corners near the flap hinges. We had a serious flood because it had been a few months since checking it and the flap hinge was blocked.
Thanks for the feedback on this Kris. We had asked the rep about that because it was something we anticipated could happen so it's good to hear your experience. But I am sorry to also hear about it leading to damages.
@@MrTexasdieselguy This is happens because solids like toilet paper clog up the mechanism. Im a plumber by trade and these things are nothing but problems.
It would never last that long... In the demo it works great because he's using nice clean water. Sewer water is not clean! Start adding toilet paper, wipes an other solid matter and the demo would fail guaranteed.
Okay so when the lid comes up and closes the passage, what would happen if sewage from the house is also present and flowing at the same time? Basically the sewage at each section are opposing each other. It's just similar as to having your septic passage blocked. Then the water will just start filling up the passageway and ultimately the shit will come back to your toilets and sinks.
If that happens, I'd assume you'd see your own toilets/sinks/showers not flowing properly, go check the valve. In any case you don't end up getting your neighborhood's effluent into your own home.
what happens if the main sewer is in front of your house and is blocked throwing 2 feet of water and then the sewer backs up into your basement and shower, and you install the backflow preventor and it stops the water from coming in, what happens to that water as the whole street has 2feet of water?
If you have a backflow device and your home is above the level of the water, you should not get any water into your home. The water should remain in the street and sewers and could also go into other basements where there are no backflow devices. If there are storm sewers or combined sewers (the ones connecting both sanitary and storm) the water eventually flows to streams and rivers. This discharge to a water body is often regulated and must be reported by the community as would any backups into other homes.
Clear demo but what were they thinking recording this DURING the noisy opening hours of the Expo. Couldn't understand a lot of the explanation, unfortunately.
We were also wondering about that and asked what would happen if debris got caught. He said the design of the product helps prevent that. I'm wondering if it is because normal flow would not cause debris to get caught so it would only happen if water started flowing back. And at that point, the water is more likely to be stormwater than wastewater since backups happen due to an increase in flow from rain. So perhaps there is less chance for debris to even be in the water at that point.
There is always a chance that wastewater will back up due to a storm sewer pipe leaking into a refuse sewer causing the toilet water to back up into a persons house via the toilet drain. Like it happen in Millersville, Pa, Lancaster county Pa. Several years ago,and Millersville didn't care about it either. They said that they have immunity from being responsible because of what happened in their town due to their own fault. Typical liberal thinking.
It won't and rather remain open and allow a backup to occur. Best ones have the flap ontop which remain closed at all times and only when you flush your toilets or run your sinks from inside does it push the flap open and allow your sewage to exit your building.
No because you have whats called differential pressure. The pressure on the other side of the gate will be higher and the static pressure on the gate will push it shut. It would actually push it shut even tighter the higher the water got.
@msujaj9 I am not familiar with any. It would probably be best to contact the manufacturer of the product to get more info on actual installations in our area: backwatervalve com (youtube won't let me post this in the normal format)
@jumpdance24 We also asked about the maintenance and then the chance of debris causing failure. He said the maintenance is easy because it is accessible through the top in an open pit and has a clear lid to help with easy inspection. He said due to the design, debris does not cause issues. The pressure holding the flap closed is from the water that is trying to back up. Not sure if it could continue to allow discharge during a backup though. You could checkout their website for more info.
the purpose of the device is to make sure that water, in this case sewage, only flows in one direction, away from your house. if the device is triggered, that means the flow of sewage is towards your home, which also means any sewage that is going down the pipes during this time will be stuck in the pipes until the sewage flow returns to normal. this device simply stops sewage from flowing into your home; it doesnt fix the problem that's causing the sewage backup.
It'll back up in the pipes and manholes. As soon as the municipality knows there's a problem, they would set up a pump to bypass the backup and clear the blockage.
I just don't see this thing working consistently, there always is solids in the water, even if it is only 5% and there is a lot of air, if the system is not discharging for a week or two the solids tend to dry up if they did not flow out. Seems a little bit of feces and some air to dry while I'm on a two week vacation would cause the flap door to get stuck. If you have to clean it once a week I highly doubt that will happen. Maybe a wash port and a solenoid on a timer to purge it might make this more reliable and possibly a test procedure so the homeowner can verify that it is functional.
The cleaning feature is a good idea because I also doubt most people would want to spend that much time fussing with it. Would be best if they had a water hookup to it where you just pressed a button to clean it, but I guess there would be concerns connecting potable water to a component in the sewer system.
Your flap will be closed, therefore any discharge from your home will simply go back into your piping, it will eventually go up your sinks, tub/shower, and toilets if it has nowhere else to go.....
It would depend on the pressure if it would flow out or not. If I had one of these, and I knew conditions were backing water up to it, I would probably try not to discharge water to the sewer until the water went down.
This design is flawed in a sense that if it backs up with debris there is a chance it may not fully go back down causing a blockage. It would be better if the mechanism was ontop of the pipes that way gravity always kept it closed and when you flush your toilets it pushed it open. This would make it harder for debris to get stuck behind it if it ever backed up.
Your videos have helped us a lot to learn so many things. These days, I feel TH-cam is not only a place to entertain watching random videos but also a great place to learn things of our expertise. I have learned more things on TH-cam than at my university. Unfortunately, we don't get any certificate for learning so many things. Keep making more videos...our blessings are with you.
I installed one in February, 2020, and it passed its first test yesterday. I was watching with a flashlight when the yellow gate floated up and closed. I celebrated with a beer. Keep it clean and it will work.
Keep it clean...what do you mean?
@@r828realty iI's necessary to unscrew the plug and flush out the muck with the hose a few times a year. Enough muck and the gate will stick in the open position.
where can i buy one here in the US? thanks
@@PabloTaboadaNYCAmazon
I love how the crowd is going nuts over something else as the valve closes.
I know, right?!
I don’t think it’s because of that
Timed pipe hot tapping competitions are going on all throughout this show.
@pwgroup If the valve is closed due to backflow from the sewer line you will not be able to discharge any water until the valve opens once again. The beauty of the Mainline is that if you are experiencing heavy rains and suspect your valve could be closed, simply open the access panel and look through the transparent top to see if the valve is closed or open.
Does anyone know if these would be good to install if you're on a Septic System? To prevent the chance of ever having a backup?
@poohbearpost that's what we liked about it too. We always worry about the regular type of check valves getting stuck and causing a backup. Plus we liked the see-through access for checking and accessing it.
I have one of these installed. You have to clean it on a regular basis so it does not get clogged. Debris gets stuck in the corners near the flap hinges. We had a serious flood because it had been a few months since checking it and the flap hinge was blocked.
Thanks for the feedback on this Kris. We had asked the rep about that because it was something we anticipated could happen so it's good to hear your experience. But I am sorry to also hear about it leading to damages.
That was my thought. Solids would prevent it from working properly
Can you please tell me who install it for you?
Looks just what my fathers house needs after 2 floods in 2 years. What about an alarm so you know not to run water or flush?
how can I avail or where to buy this product. im from philippines. I need this badly. thanks.
What happens if you run an auger trough? Seems like will damage the flapper and get stuck in the way back
Would love to see this 10 years after its installed.
I bought one, got tested when the sewer backed up a few months later, and it failed miserably... looks neat, didn't work for me.
Silver Cymbal hey! Love your channel!
@@MrTexasdieselguy This is happens because solids like toilet paper clog up the mechanism. Im a plumber by trade and these things are nothing but problems.
It would never last that long... In the demo it works great because he's using nice clean water. Sewer water is not clean! Start adding toilet paper, wipes an other solid matter and the demo would fail guaranteed.
@@MisterGreenGuy exactly
When fills how stop it from overflowing into house? When the water reaches the top of the box for example
No, only if the seal fails. Otherwise the hydrostatic pressure simply increases and presses down on the seal even more.
how can get it bangladesh?
Does any company use this product in Chicago, Illinois? If so, I would like to contact that company.
What happens when solid matter gets under the flap in the open / Close function
Okay so when the lid comes up and closes the passage, what would happen if sewage from the house is also present and flowing at the same time? Basically the sewage at each section are opposing each other. It's just similar as to having your septic passage blocked. Then the water will just start filling up the passageway and ultimately the shit will come back to your toilets and sinks.
If that happens, I'd assume you'd see your own toilets/sinks/showers not flowing properly, go check the valve. In any case you don't end up getting your neighborhood's effluent into your own home.
@msujaj9 I was just thinking the same thing. I'm assuming that you got flooded this morning...
what happens if the main sewer is in front of your house and is blocked throwing 2 feet of water and then the sewer backs up into your basement and shower, and you install the backflow preventor and it stops the water from coming in, what happens to that water as the whole street has 2feet of water?
If you have a backflow device and your home is above the level of the water, you should not get any water into your home. The water should remain in the street and sewers and could also go into other basements where there are no backflow devices. If there are storm sewers or combined sewers (the ones connecting both sanitary and storm) the water eventually flows to streams and rivers. This discharge to a water body is often regulated and must be reported by the community as would any backups into other homes.
Clear demo but what were they thinking recording this DURING the noisy opening hours of the Expo. Couldn't understand a lot of the explanation, unfortunately.
What distributors carry this in the Chicago area?
We were also wondering about that and asked what would happen if debris got caught. He said the design of the product helps prevent that. I'm wondering if it is because normal flow would not cause debris to get caught so it would only happen if water started flowing back. And at that point, the water is more likely to be stormwater than wastewater since backups happen due to an increase in flow from rain. So perhaps there is less chance for debris to even be in the water at that point.
There is always a chance that wastewater will back up due to a storm sewer pipe leaking into a refuse sewer causing the toilet water to back up into a persons house via the toilet drain. Like it happen in Millersville, Pa, Lancaster county Pa. Several years ago,and Millersville didn't care about it either. They said that they have immunity from being responsible because of what happened in their town due to their own fault. Typical liberal thinking.
Ok question, how will the floatation action work against raw sewing with low water content
It won't and rather remain open and allow a backup to occur. Best ones have the flap ontop which remain closed at all times and only when you flush your toilets or run your sinks from inside does it push the flap open and allow your sewage to exit your building.
How much back flow pressure can the fitting withstand?
1.264 million
i would like to see the demo let the water get above the gate. wouldn't that equalize the pressure and allow the gate to open?
jacobyodernation
No because you have whats called differential pressure. The pressure on the other side of the gate will be higher and the static pressure on the gate will push it shut. It would actually push it shut even tighter the higher the water got.
Would this stop mice getting in through sewer?
No not at all
@msujaj9 I am not familiar with any. It would probably be best to contact the manufacturer of the product to get more info on actual installations in our area: backwatervalve com (youtube won't let me post this in the normal format)
Where it is installed, which exactly place?
Where the main sewer pipe enters the building.
@jumpdance24 We also asked about the maintenance and then the chance of debris causing failure. He said the maintenance is easy because it is accessible through the top in an open pit and has a clear lid to help with easy inspection. He said due to the design, debris does not cause issues. The pressure holding the flap closed is from the water that is trying to back up. Not sure if it could continue to allow discharge during a backup though. You could checkout their website for more info.
But where does the water go??? If the pipes are blocked, it has to go somewhere..
the purpose of the device is to make sure that water, in this case sewage, only flows in one direction, away from your house. if the device is triggered, that means the flow of sewage is towards your home, which also means any sewage that is going down the pipes during this time will be stuck in the pipes until the sewage flow returns to normal. this device simply stops sewage from flowing into your home; it doesnt fix the problem that's causing the sewage backup.
It'll back up in the pipes and manholes. As soon as the municipality knows there's a problem, they would set up a pump to bypass the backup and clear the blockage.
In the streets if it gets higher than the manholes. Better that it flowed down the street than down the floor of your house.
I just don't see this thing working consistently, there always is solids in the water, even if it is only 5% and there is a lot of air, if the system is not discharging for a week or two the solids tend to dry up if they did not flow out. Seems a little bit of feces and some air to dry while I'm on a two week vacation would cause the flap door to get stuck. If you have to clean it once a week I highly doubt that will happen. Maybe a wash port and a solenoid on a timer to purge it might make this more reliable and possibly a test procedure so the homeowner can verify that it is functional.
The cleaning feature is a good idea because I also doubt most people would want to spend that much time fussing with it. Would be best if they had a water hookup to it where you just pressed a button to clean it, but I guess there would be concerns connecting potable water to a component in the sewer system.
What if water is coming from both side at the same time.?
Your flap will be closed, therefore any discharge from your home will simply go back into your piping, it will eventually go up your sinks, tub/shower, and toilets if it has nowhere else to go.....
It would depend on the pressure if it would flow out or not. If I had one of these, and I knew conditions were backing water up to it, I would probably try not to discharge water to the sewer until the water went down.
I don't think it needs a clear lid.. :)
Oh dear.
This design is flawed in a sense that if it backs up with debris there is a chance it may not fully go back down causing a blockage. It would be better if the mechanism was ontop of the pipes that way gravity always kept it closed and when you flush your toilets it pushed it open. This would make it harder for debris to get stuck behind it if it ever backed up.
Sewer typically has solids too. This seal will fail in no time...
Nice until you get a turd or wad of toilet paper stuck in there
No