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#1
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Unwise to connect 11/4" drain to 11/2" trap?
I put in a new bathroom faucet. The drain has a 11/4" diamter tail.
The existing trap is 11/2". I was advised by the local hardware store that to do the job right, everything should be 11/4" and not to use a reducer in order to attach the 11/2" trap to the 11/4" sink drain. I didn't think of it at the time, but wouldn't a 11/4" drain going into a larger 11/2" provide for efficient draining? Or is keeping everything the same size a good rule of thumb? |
#2
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Unwise to connect 11/4" drain to 11/2" trap?
kc wrote:
I put in a new bathroom faucet. The drain has a 11/4" diamter tail. The existing trap is 11/2". I was advised by the local hardware store that to do the job right, everything should be 11/4" and not to use a reducer in order to attach the 11/2" trap to the 11/4" sink drain. I didn't think of it at the time, but wouldn't a 11/4" drain going into a larger 11/2" provide for efficient draining? Or is keeping everything the same size a good rule of thumb? The 1 1/2" trap will be just fine. Depending on the trap material, there is a rubber reducing washer or a plastic one which the hdwr guy should have in stock. Jim |
#3
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Unwise to connect 11/4" drain to 11/2" trap?
I think the person at the h/w store is confused. There is no problems going
from a 1 1/4 drain into a 1 1/2 trap. For that matter, you could just as easily go from a 1 1/2 drain into a 1 1/4 trap. In the case of a residential sink in a bathroom or kitchen, it really makes no difference at all if the pipes change from 1 1/2 to 1/1/4 here and there and back again. "kc" wrote in message ups.com... I put in a new bathroom faucet. The drain has a 11/4" diamter tail. The existing trap is 11/2". I was advised by the local hardware store that to do the job right, everything should be 11/4" and not to use a reducer in order to attach the 11/2" trap to the 11/4" sink drain. I didn't think of it at the time, but wouldn't a 11/4" drain going into a larger 11/2" provide for efficient draining? Or is keeping everything the same size a good rule of thumb? |
#4
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Unwise to connect 11/4" drain to 11/2" trap?
Thanks fo\r the responses. I couldn't figure out why going from a
smaller to a larger diameter pipe would be a liability. He phrased it as "if it s done right, it will all be 11/4" with no reducers". I went ahead and used the reducer and it seems to be fine. |
#5
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Unwise to connect 11/4" drain to 11/2" trap?
On Apr 16, 2:40 pm, "kc" wrote:
I put in a new bathroom faucet. The drain has a 11/4" diamter tail. The existing trap is 11/2". I was advised by the local hardware store that to do the job right, everything should be 11/4" and not to use a reducer in order to attach the 11/2" trap to the 11/4" sink drain. I didn't think of it at the time, but wouldn't a 11/4" drain going into a larger 11/2" provide for efficient draining? Or is keeping everything the same size a good rule of thumb? you may be just fine, but your hardware guy may be right also. i think the same size design would help me now: i don't like my kitchen's 1-1/2" going into an old design 2" S-trap. it seems sluggish and struggles to push the drain water thru even with an auxiliary vent. i was the 1976 "plumber" and should have piped the tail into a 1-1/2" p-trap first. note that s-traps are not the usual recommended plumbing design these days. |
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