DIYbanter - View Single Post - Routing T&P relief valve pipe of water heater into sump pit

RogerT

wrote:
On Mar 7, 8:09 am, jamesgangnc wrote:
On Mar 7, 6:37 am, Mikepier wrote:

My water heater has a 3/4" copper pipe from the T&P valve extending
down about 8" from the floor. I have a sump pit about 5 feet to the
left. I wanted to somehow route this discharge pipe into the pit in
case somethig happens.
Obviously it would be easy if I used some kind of flexible hose
rated for high temps. Is there anything wrong in doing it this way?
How is it usally done?

The answer may depend on your local codes. There is a code in
most areas that deals with how the TSP line can terminate. I know
it specs a max height above the floor that is allowed. And I think
I've
seen where code also specs a min height as well. If so, that would
seem to preclude routing it directly to the sump pit.....

If this or other possible code issues (such as "no unions" that someone else
mentioned) are an issue, then don't change anything with the existing copper
pipe. Leave it in place and do the 1 1/2 inch PVC idea I wrote about
before. Have the water from the copper pipe enter into a 1 1/2 inch PVC
drain line that runs to the sump pump pit in the same way that washing
machine hose pump water into a PVC drain line. The PVC would just be a
drain that the copper pipe outflow drains into. It would provide an air gap
and would not be an extension of the exisitng copper pipe.