Its your bathtub drain.
No, unless you asked for an overflow pipe. Just set your pump to waste and drop the level to where you want it.
No I would never use copper or brass in any home for a waste and overflow on a tub. I would use all glue together waste and over flows because they last and are strong .
The bath filler waste is directly connected to the trap and overflow water is supposed to drain there -it is not a leak.
This is called a direct drain and they are not easy to find compared to tub drains that drain via the overflow pipe. Watco and Dearborn Brass both make kits to do this, available in the US.
In the 8086/8088, the overflow flag is set when the result of an arithmetic instruction exceeds the bounds of the signed representation of a number. This is not the same as the carry flag, which is used for the unsigned representation. Both flags get set as needed. You decide which one to pay attention to.
If the pool is really dirty then it is best to set the filter to waste.
floodpain
Household waste ends up in dumps when thrown away. The dumps overflow with trash. New dumps are made. In result, trash mountains (dumps) are everywhere.
Yes, the gasket between the overflow pipe and the tub can go bad, or it can leak around where the pipe is attached to the drain.
In a radiator, the fluids get really hot, when things get hot they expand and then they have to go somewhere, the fluid goes into an overflow.
In the radiator and the overflow bottle.
An overflow tank is a bottle that holds coolant that expands and leaves the radiator under driving conditions. The Coolant will go back into the radiator as needed.