Black corrugated 4 inch pipe that is slotted is more than likely connected to: 1) a French drain or 2) a collection box at the end of a drainage swale- more
See full version: Black plastic pipe sticking out of ground
Black corrugated 4 inch pipe that is slotted is more than likely connected to: 1) a French drain or 2) a collection box at the end of a drainage swale- more
If you live inside the jurisdiction of a municipality, then more than likely your home is connected to the sewer system.
Some homes discharge clothes washer and shower water into a yard drainage system. You have to use special soaps if you have such a system. I have seen two houses like this ever. [links]
It could be a sump pump outlet. [links]
When a new home is built, one of the last items to be completed is the basement floor slab. That is because there are many embedded plumbing pipes, as well as weeping tile and often a sump pit and other items that have to be completed before pouring the concrete. These plumbing drain pipes may interconnect beneath the slab and have several vertical sections that protrude through the finished concrete. One of these is what you have found when you removed the old carpet. I have a couple of options for this if you have a newer home with ABS plastic drains and other options if you have an older home with cast iron drains.
Another possibility for a newer home is that there are “roughed-in” plumbing drains installed in the basement for a future bathroom, that were covered over. The toilet drain pipe is normally installed with a short section sticking through the floor slab, high enough to install a cap. If the cap has been removed and the pipe cut flush with the floor, then it would look similar to your description. It would not normally have water in the bottom, and the same smell test should determine if this was a possibility. If no odour is coming out of the pipe, then I have no idea what you are dealing with, but it may not be of much concern. [links]
The answer to your question is largely dependent on the age of your home. You have not identified the material that the pipe was made from, which would also give me a clue to its purpose. Since the information is limited, I will do a bit of speculative detective work and offer several possibilities.
The final possibility that I can think of for an older home is an abandoned eavestrough drain. Many years ago, older eavestrough downspouts used to drain through the foundation or exterior walls and empty into a short stack sticking a few feet out of the basement floor slab. These vertical pipes typically connected under the floor slab to the catch basin, which drained the water into the floor drain. This practice was discontinued many years ago, as it often led to overburdened sewers and basement backups during heavy rainfalls. This final possibility can be determined by the smell test, which may provide a damp or even mouldy smell, but not sewage. If no sewage smell is detected, remove the cover from the floor drain/catch basin and pour some water into the hole in the floor. If this water is seen draining into the catch basin, than the mystery is solved. In this case, filling the hole with regular concrete patch will end your concerns.
Where I am (upper mid-west), two pvc pipes coming out of the house near each other are intake and exhaust for a high efficiency furnace. I suppose it could be for a water heater, as well. [links]
could be A/C, it's been slightly more humid here lately, which is what I've been chalking the dripping up to. more
I'd say sump pump drain if you have one. here
They're vents, probably. What diameter PVC? more
Miniature zombie point of entry
Then there’s the “looks good on paper” pipe to nowhere that is an underground extension but is so poorly planned and designed that it does more harm than good. [links]
Again, most homeowners get the concept but, regrettably, many of them seem to think that, as long as their downspout disappears into a pipe or the ground, all is well. Too many times, however, what appears to be a functioning downspout extension turns out to be the “pipe to nowhere.” more
There’s the “looks good above the ground” pipe to nowhere that gives the appearance of an underground downspout extension but is nothing more than a piece of pipe sticking out of the ground. here
Then, there’s the downspout. Often sort of an afterthought, the downspout is the pipe that takes the water from the gutters and conveys it to the ground. If, however, the downspout is nothing but a straight pipe, with perhaps a short elbow attached, that ends at or above ground level, the whole thing is useless because the water is still being dumped around the foundation, this time in concentrated spots, and the basement is destined to leak. more
For example, homes have rain gutter systems to collect and channel rain water off the roof into a downspout instead of simply allowing it to pour over the edge where it will saturate the soil in the 10-foot zone around the home and ultimately end up in the basement. Most homeowners get this and keep their gutters clean and flowing.