Help me ID parts of this sump pump drain system outside my house. (If I did this right, you should be able to click on below and see photo) And why it works.. or doesn't work the way it does...
Ignore wiring you see, it is TV cable & AC power and not related to drain system.
On top is the outlet from the basement, black corregated pipe connected to the outlet from the house. It runs into top of 4" pipe which comes up out of ground. The 2" "T" coming off to the right is where the water has always come out, since I have owned the house (7 years) Under that is a makeshift PVC drain that I fashioned last year, it goes underground and drains out on lawn 20 feet from house. I did that as a temp measure to get water from the base of house until I came up with better plan.
When I looked down the 4" pipe that goes into the ground, I saw it went down maybe 18" and then seemed to have an elbow and seemed to lead away from the house foundation.
My question is this: Why does the water come out the top "T", I assume the pipe leading into the ground was at one time a way for water to be carried from the home... but perhaps it is plugged or something, which causes the water to come out the top "T", which I am guessing could have been a relif type outlet in the event the main drain is clogged. Is that right? Is there any other reason for that pipe to exist? I have never found any kind of outlet for that pipe out on the lawn.