Water heater drain connection
 

I'm installing an undersink 4.5 gal. water heater and need a good way
to connect the 3/4" pressure relief valve to a 1-1/4" drain line.
The only fittings I've found that come close to this is a
dishwasher connection for 1-1/2" pipe. This would require re-plumbing
the sink with pop-up stopper for 1-1/2" pipe.

Other possibilities would be to run it through a brick wall or just
drain it into a container.

Any ideas? Do I need an air gap?

Thanks
pb

Water heater drain connection
 

Pat wrote:

I'm installing an undersink 4.5 gal. water heater and need a good way
to connect the 3/4" pressure relief valve to a 1-1/4" drain line.
The only fittings I've found that come close to this is a
dishwasher connection for 1-1/2" pipe. This would require re-plumbing
the sink with pop-up stopper for 1-1/2" pipe.

Other possibilities would be to run it through a brick wall or just
drain it into a container.

Any ideas? Do I need an air gap?

Thanks
pb

You could ask the local inspector, but I don't think discharging
the superheated water/steam into the basin drain will fly.

I would rather see it dischg to the outside. Bring the pipe to
6" to 24" above ground level and aimed down.

Jim

Water heater drain connection
 

Air gap definitely required to avoid possible cross-connection.

--
Best Regards,
Dennis J Sunday
Home Inspection Systems
Www.homeinspectionsystems.com

"Pat" "pblomquist at "@ yahoo dot . com wrote in message
hlink.net...
I'm installing an undersink 4.5 gal. water heater and need a good way
to connect the 3/4" pressure relief valve to a 1-1/4" drain line.
The only fittings I've found that come close to this is a
dishwasher connection for 1-1/2" pipe. This would require re-plumbing
the sink with pop-up stopper for 1-1/2" pipe.

Other possibilities would be to run it through a brick wall or just
drain it into a container.

Any ideas? Do I need an air gap?

Thanks
pb