The last piece of pipe that actually daylights, is likely ever so slightly pitched up. See the joint just about 12″ deep? Dig out around the opening and see if you can push it down.
teamshoe
They should be using an RHS, PE pipe to the street is always shit plus the lip tends to grade back to the pipe which is what I think is happening.
Gizmotastix
Do you have a grate on the other end? If so, stick a leaf blower in and crank that somegun to blow it out
joedastallion
The drainage pipe is sloped towards the street but as it gets near the street it slopes back else it wouldn’t make it out above street level. As the pipe fills with water it flows out. One thing you can do is end it before the curb in to a drainage basin with holes at the bottom. As the basin fills it will empty. When it stops flowing the leftover water will slowly drain into the ground. This is preferable because the grate cover keeps rodents & trash out. You can also cut the pipe from behind, pull it out, drill holes on the bottom & reconnect.
Inturnelliptical
Should have used an upside egg pipe running down at 4mm per meter, that is the least amount of fall required.
Likes2FAFO
As someone who used to do landscaping and multiple drains. I hate that it was done in pvc and not a coordinated pipe to reduce water flow. Also, living in a neighborhood where the houses sit almost level with the street, I can say even with almost zero slope, it needs to have enough slope to drain water properly to avoid exactly this. I don’t know your specific circumstance. But I would imagine they did not change the starting elevation at the down spout. And just buried a pvc pipe mostly level at the bottom of the downspout. There’s probably more water in there than you think. I personally would have cut the downspouts about 2-3 feet shorter and used pvc pipe to gain the initial slope that fed into a corrugated pipe. Also would have used a pop-up at the end that closes if there isnt enough pressure to open it. Which helps prevent mosquitoes from nesting in standing water. Imo this guy doesn’t do it on a regular basis and kinda just slapped it to get her to get paid.
Sufficient-Agent514
Im sure you mean French Drain and Constant water. The curb is 6 inches tall. 4 inch thick sidewalk and 4 inch pvc pipe. So if the pipe is under the sidewalk and the invert of the pipe is at gutter grade, then the pipe rises maybe 2 inches at the end. Sort of creating a P trap. But there is no issue if bottom of pipe holds water. It will clean out during a rain event.
Ok-Client5022
No, the pipe is incorrectly pitched near the opening. You were given a crap answer.
00sucker00
If your yard is flat-ish, and the bottom of a 4-inch pipe is daylighting through a 6-inch curb, then the standing water in the pipe is due to there not being enough slope in the pipe for gravity to drain the pipe out.
14 Comments
It’s cracked on the second picture. This is terrible unless they arent finished yet
My drain always has some water. Probably due to surface tension. 1” seems like a lot though.
Looks like a mosquito breeding ground
[installer explanation](https://ibb.co/WvpYtLgW)
Does this installer explanation make sense?
The last piece of pipe that actually daylights, is likely ever so slightly pitched up. See the joint just about 12″ deep? Dig out around the opening and see if you can push it down.
They should be using an RHS, PE pipe to the street is always shit plus the lip tends to grade back to the pipe which is what I think is happening.
Do you have a grate on the other end? If so, stick a leaf blower in and crank that somegun to blow it out
The drainage pipe is sloped towards the street but as it gets near the street it slopes back else it wouldn’t make it out above street level. As the pipe fills with water it flows out. One thing you can do is end it before the curb in to a drainage basin with holes at the bottom. As the basin fills it will empty. When it stops flowing the leftover water will slowly drain into the ground. This is preferable because the grate cover keeps rodents & trash out. You can also cut the pipe from behind, pull it out, drill holes on the bottom & reconnect.
Should have used an upside egg pipe running down at 4mm per meter, that is the least amount of fall required.
As someone who used to do landscaping and multiple drains. I hate that it was done in pvc and not a coordinated pipe to reduce water flow. Also, living in a neighborhood where the houses sit almost level with the street, I can say even with almost zero slope, it needs to have enough slope to drain water properly to avoid exactly this. I don’t know your specific circumstance. But I would imagine they did not change the starting elevation at the down spout. And just buried a pvc pipe mostly level at the bottom of the downspout. There’s probably more water in there than you think. I personally would have cut the downspouts about 2-3 feet shorter and used pvc pipe to gain the initial slope that fed into a corrugated pipe. Also would have used a pop-up at the end that closes if there isnt enough pressure to open it. Which helps prevent mosquitoes from nesting in standing water. Imo this guy doesn’t do it on a regular basis and kinda just slapped it to get her to get paid.
Im sure you mean French Drain and Constant water. The curb is 6 inches tall. 4 inch thick sidewalk and 4 inch pvc pipe. So if the pipe is under the sidewalk and the invert of the pipe is at gutter grade, then the pipe rises maybe 2 inches at the end. Sort of creating a P trap. But there is no issue if bottom of pipe holds water. It will clean out during a rain event.
No, the pipe is incorrectly pitched near the opening. You were given a crap answer.
If your yard is flat-ish, and the bottom of a 4-inch pipe is daylighting through a 6-inch curb, then the standing water in the pipe is due to there not being enough slope in the pipe for gravity to drain the pipe out.
They’re called freedom Frites…