Adding a dish washer

[orangetrader]

If I add a new dish washer, I assume I will get the hot & old water supply from the kitchen sink water supply. Do I need something to "split" the water to the faucet and the dish washer? Also does the dish washer drain into where the kitchen sink drains? Can I connect it laterally to the kitchen p-trap or do I need to actually connect to the drain line which is behind inside the exterior wall? I assume I will need a 240V outlet, right now my refrigerator connects to it, so I need to install another outlet, does it need to be GFIC (spelling)?

Thanks in advance,

O

[Edwin Pawlowski]

Only hot is needed. You don't need either cold or old water. In most cases it is easierst to p ut a "t" in the feed line to the sink, sometimes is is esier to come up from the basement if the ceiling is open.

A T fitting.

You can buy a piece of the drain pipe with an inlet for a dishwasher. If you have a garbage disposal there will be a connection on the side.

What country are you in? In the US it is 120V, in other countries it may be

240V. It should not share the circuit with a refrigerator.

Sure can't hurt. I'm not sure what the code is on that.

[orangetrader]

I am in the US. My refrigerator is using a 120V outlet but my washing machine is plugged into a 240V outlet. I just assume may be a dish washer will need 240V?

Thanks,

O

[Edwin Pawlowski]

I've never seen a 240 washer. Dryer, yes. DW are all 120. Some brands have the manual on line so you can see in advance what you need.

[Kevin]

I connected the discharge of my Kitchen Aid into the garbage disposal knock-out which is high enough, per manufacturer's instructions, that I did not need a vacuum breaker up on the counter. If you don't have a disposal, a 'T' at sufficient height should be OK. Said height should be in your dishwasher's instructions somewhere.

[Kevin]

OOPS. Focused on the discharge. 120Vac should be fine. GCFI depends on code, but I did just because. Hot water only required. Operating instructions will likely call for running the hot faucet to clear the cold from the pipes for more efficient cleaning.

[Andy Hill]

You just need 120V. And, while code doesn't require either a dedicated circuit or a GFCI for the DW, both are a reasonable thing to do. You probably should check the installation manual for your DW -- some manufacturers require a dedicated circuit in order for the warranty to apply (especially for those DWs with a "water heat" option -- those babies suck down the juice).

BTW, are you *sure* your washing machine is on 240V? That's not very common in the US. Electric dryer, yeah, but washer?