ruffryder
New Member
Hello all.
I am installing / relocating a new gas water heater into the small basement under my house. The basement is reached by some outside stairs that are concrete, and then through a metal door. The basement floor is concrete and does not have a drain, though there is a dry well at the landing at the base of the stairs that handles the water from the rain. I also dump the dehumidifier bucket down it when I empty it. The walls of the basement are concrete cinder block filled with cement.
I have been looking more into the requirements of the TP valve discharge and note that there must be an air gap between the TP valve plumbing and drain. I am thinking about installing an above floor drain that would dump into the outside drywell, through the hole in the concrete wall by the door. The above floor drain would essentially be a 2" pipe that has a deep water trap, allowing for the TP valve discharge tube to be placed above it, leaving an air gap. The drain would also then be used for condensate from the water heater and potentially a furnace.
The purpose of the water trap would be to ensure cold air and moisture doesn't enter the basement area. The trap would be located in the heated area of the basement, so as to mitigate any possible freezing.
Your thoughts on if this is an acceptable idea would be appreciated.
I am installing / relocating a new gas water heater into the small basement under my house. The basement is reached by some outside stairs that are concrete, and then through a metal door. The basement floor is concrete and does not have a drain, though there is a dry well at the landing at the base of the stairs that handles the water from the rain. I also dump the dehumidifier bucket down it when I empty it. The walls of the basement are concrete cinder block filled with cement.
I have been looking more into the requirements of the TP valve discharge and note that there must be an air gap between the TP valve plumbing and drain. I am thinking about installing an above floor drain that would dump into the outside drywell, through the hole in the concrete wall by the door. The above floor drain would essentially be a 2" pipe that has a deep water trap, allowing for the TP valve discharge tube to be placed above it, leaving an air gap. The drain would also then be used for condensate from the water heater and potentially a furnace.
The purpose of the water trap would be to ensure cold air and moisture doesn't enter the basement area. The trap would be located in the heated area of the basement, so as to mitigate any possible freezing.
Your thoughts on if this is an acceptable idea would be appreciated.