I'm in the home stretch on my kitchen. I gutted it back to the studs
and took out a wall, re-wired and re-plumbed everything, the
sheetrock's up, last weekend I got all of the hanging cabinets and the
base corner cabinets in, and this weekend I got the rest of the base
cabinets in, the gas stove in (you should have seen my wife and I,
she's 5'2", getting the gas stove up the stairs last night, it was
CY: I'm tired just reading this.
I got the dishwasher in and wired, the countertops and sink
in, and the new faucet in and all connected.
I'm down to final connections now, for the drain under the sink, which
will feed out from the garbage disposal, which is also finally wired up
and ready to roll.
Here I hit my quandary.
I've got 1 1/2" pvc coming in for the drain. the sink trap kit I've
bought says '1 1/2"' on it, but it's a lot smaller than the 1 1/2" pvc
coming in. How do I make the connection?
CY: Might be inside diameter? I'm thinking either an adaptor, or maybe a
rubber connector with the two hose clamps.
Also, the pipe coming off of the disposal is a straight pipe. It has no
ridge on the end or anything. I don't understand how a pipe is supposed
to connect to it with a nut and stay connected, it makes no sense to
me. Yes, I'm probably just exhausted, I worked until midnight last
night and through to 8 o'clock tonight, but my brain just isn't
grasping it (and I'm rambling).
CY: There might be a plastic ferrule in there, which turns it into a
compression fitting. I saw this one time for a drain. Confused me for a long
So, to sum up:
1) Straight pipe coming off of disposal -- how does one get something
to attach to it?
CY: Ferrule? plastic compression?
2) 1 1/2" drain pipe coming in from wall -- how does one attach the
smaller 1 1/2" sink trap kit to it?
CY: Rubber fermco connector, and hose clamps.
Why doesn't 1 1/2" mean 1 1/2"? Last night I was working with the pipes
for the gas, and they're nuts too. 1/2" pipe for gas is a LOT bigger
than 1/2". It's more like 3/4", which is the next size up, and is more
like an inch.
CY: Gas pipe is measured inside diameter.
Maybe it's time to convert to metric and sell everything with an honest
CY: Not sure that will help. Heating guys have that same problem, 3/8 copper
for water is 3/8 ID, and 3/8 for refrigeration is OD. Go figure.
CY: I'm not sure I'm able to answer all this, but did my best.