Hello,

I have a strange situation. I have a poured foundation basement with a small leak (on the order of a glass every 30min) about 3 feet down from the top of the wall / 5 feet from the basement floor.
It leaks continuously 24 x 7 regardless of rain or days of dry weather and has been leaking for a very long time.
It's no where near where the main water line comes in or sewage line goes out.
There's no water spigot nearby.
The sprinkler systems are still off with the water line to that closed.
There's no window there and there is no leak anywhere else inside the house.
On the outside of the house where the leak is a poured concrete porch.
There are proper downspouts that direct rain water away from the house.

We tried to stop it from the inside with epoxy, injected polyurethane foam but it persists.

Any ideas of what it could be / how it can be stopped ?
Should it be stopped - i.e. will it cause other problems if I do end up eliminating it.

Can it be the main water line ? - i.e. is it making a right turn out of our house going by that area there and then turning again before it goes out to the street and that part is leaking ?
(I measured and I think we have at least 90psi).

Thank you for any help,

Jake

Look closely at your water meter while every fixture in the home is OFF. Does the small diamond shaped pointer move ever so slowly?

Hi,

No it doesn't, but I'm going to do a more controlled test today.
But, doesn't the meter in my house measure only the water that I use inside the house.
In other words, how would it know about any water flow on the line between the water main and my house ?

Thanks

By turning off the water at the street and waiting to see if the leak continues.

I'll bet on a leaking water supply line to the house. What you are explaining is usually the line from the meter to the pressure valve.