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Kitchen and Utility Fixtures

Star Special case plumbing needed for kitchens and utility rooms.


Kitchen island sinks

Venting a sink on an island in the kitchen present special challenges because there is no way to route a vent upwards from the island.  The diagram below shows how plumbing code requires it to be done (in most geographical areas).

Island sink venting 

Kitchen island sink pipes


Dishwasher plumbing diagram 

Nowadays it is best to use a dishwasher air gap and this is now required in WA State.

Kitchen sink, food grinder, and dishwasher can discharge through a single 1.5" trap.

Dishwasher waste pipe must increase to 3/4".

Secure dishwasher exit pipe to underside of counter.

Typically connect to side of food grinder but can use Wye between sink and sink trap.

Kitchen Sink

Kichen Sink 35in  Kitchen Sink

Want a 36" sink with a front skirt.  The front skirt reduces the amount of counter top that needs to be implemented and avoids back strain as you don't have to lean forward as much.

Sink Mounting Flush 

It's best to get a 16 gauge sink.

Steel Guage Chart 


Kitchen Faucet

Kitchen faucet - two outlets 

Purchasing detail is here .

It's nice to have an extra tap and an extra nozzle so you can do separate filtered drinking water or boiling water from an instant hot water heater.


Filtered Water

For really clean water it is good to put a Reverse Osmosis Water Filter under the kitchen sink, particularly as these are now under $200.  It comes with its own faucet.

Reverse Osmosis Water Filter With Faucet


Instant Boiling Water Heater

Boiling Water Heater InSinkerator  Details here .

This will give you close to instant close to boiling water from an extra faucet in the kitchen.

I prefer to use a dispenser that can do both ice cold and hot water...

Water Hot Cold Dispenser Avalon 

https://smile.amazon.com/gp/product/B079VHRG56/ref=ox_sc_act_title_1?smid=ATVPDKIKX0DER&th=1     $282.56

Kitchen Island

Plumbing Kitchen Island

Laundry washing machine

Washing machine plumbing

Washing Machine Box  Washing Machine Box