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Subject Author Date
Help with Kitchen Drain WilliamC88 08-25-2007
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Posted by WilliamC88 on August 25, 2007, 5:21 pm
Hello. Got a kitchen drain issue and I was hoping for some advise. I have
a double sink, disposer on the left, rinse sink on the right. We have been
experiencing slow draining on the disposal side and it especially sucks when
washes pots and stuff on that side. As it backs up, if I turn on the
disposal and pushes it right through. I was told by a neighbor that the
drain from the disposal to the trap may be clogged or that it needs more of
a down angle. I took a picture here:

http://img399.imageshack.us/img399/6283/1000814sg0.jpg

It ain't clogged. I do notice the the drain from the disposal is going
down, but that the hole assembly on that side is lower than the main drain
into the wall. Is this OK? It is kinda hard to see in the picture. To
move the "T" up above the main drain would require the disposal to drain
"up" into the "T" and this doesn't sound right either. The right side that
goes straight into the trap drains fine.

Could it be the disposal? We have tried a plunger, draino and some special
disposal cleaner all to no avail.

Thanks for any advice!!


Posted by Speedy Jim on August 25, 2007, 5:45 pm
WilliamC88 wrote:
> Hello. Got a kitchen drain issue and I was hoping for some advise. I
> have a double sink, disposer on the left, rinse sink on the right. We
> have been experiencing slow draining on the disposal side and it
> especially sucks when washes pots and stuff on that side. As it backs
> up, if I turn on the disposal and pushes it right through. I was told
> by a neighbor that the drain from the disposal to the trap may be
> clogged or that it needs more of a down angle. I took a picture here:
>
> http://img399.imageshack.us/img399/6283/1000814sg0.jpg
>
> It ain't clogged. I do notice the the drain from the disposal is going
> down, but that the hole assembly on that side is lower than the main
> drain into the wall. Is this OK? It is kinda hard to see in the
> picture. To move the "T" up above the main drain would require the
> disposal to drain "up" into the "T" and this doesn't sound right
> either. The right side that goes straight into the trap drains fine.
>
> Could it be the disposal? We have tried a plunger, draino and some
> special disposal cleaner all to no avail.
>
> Thanks for any advice!!


As long as the disposal outlet is a hair above the
wall exit, it should work, but it's not the best
arrangement. To really fix it you'd have to lower
the wall exit point.

The TEE likely has a "baffle" built in.
That can restrict flow by quite a lot.
You could experiment by sawing the baffle out,
but with this arrangement you may get water
from the right side backing into the disposal.

A lot of work, but you could put 2 traps in,
with a WYE at the wall. That would/should help
the flow a lot.

Jim

Posted by The Streets on August 25, 2007, 6:10 pm
> Hello. Got a kitchen drain issue and I was hoping for some advise. I
> have a double sink, disposer on the left, rinse sink on the right. We
> have been experiencing slow draining on the disposal side and it
> especially sucks when washes pots and stuff on that side. As it backs up,
> if I turn on the disposal and pushes it right through. I was told by a
> neighbor that the drain from the disposal to the trap may be clogged or
> that it needs more of a down angle. I took a picture here:
>
> http://img399.imageshack.us/img399/6283/1000814sg0.jpg
>
> It ain't clogged. I do notice the the drain from the disposal is going
> down, but that the hole assembly on that side is lower than the main drain
> into the wall. Is this OK? It is kinda hard to see in the picture. To
> move the "T" up above the main drain would require the disposal to drain
> "up" into the "T" and this doesn't sound right either. The right side
> that goes straight into the trap drains fine.
>
> Could it be the disposal? We have tried a plunger, draino and some
> special disposal cleaner all to no avail.
>
> Thanks for any advice!!

Could be that the "graters" on the side wall of the disposer are partially
clogged from waste build-up. Something easy to try -- turn on the disposer
and with the water running feed in a bunch of ice cubes. I usually run
an entire bin of ice through.



Posted by John on August 29, 2007, 10:38 am
I did that once and it broke through the outer shell of the disposer. Water
went everywhere. Had to install a new disposer. Grind the ice up first.

John


>> Hello. Got a kitchen drain issue and I was hoping for some advise. I
>> have a double sink, disposer on the left, rinse sink on the right. We
>> have been experiencing slow draining on the disposal side and it
>> especially sucks when washes pots and stuff on that side. As it backs
>> up, if I turn on the disposal and pushes it right through. I was told by
>> a neighbor that the drain from the disposal to the trap may be clogged or
>> that it needs more of a down angle. I took a picture here:
>>
>> http://img399.imageshack.us/img399/6283/1000814sg0.jpg
>>
>> It ain't clogged. I do notice the the drain from the disposal is going
>> down, but that the hole assembly on that side is lower than the main
>> drain into the wall. Is this OK? It is kinda hard to see in the
>> picture. To move the "T" up above the main drain would require the
>> disposal to drain "up" into the "T" and this doesn't sound right either.
>> The right side that goes straight into the trap drains fine.
>>
>> Could it be the disposal? We have tried a plunger, draino and some
>> special disposal cleaner all to no avail.
>>
>> Thanks for any advice!!
>
> Could be that the "graters" on the side wall of the disposer are partially
> clogged from waste build-up. Something easy to try -- turn on the
> disposer
> and with the water running feed in a bunch of ice cubes. I usually run
> an entire bin of ice through.
>


Posted by Joe on August 26, 2007, 12:54 pm
wrote:
> Hello. Got a kitchen drain issue and I was hoping for some advise. I have
> a double sink, disposer on the left, rinse sink on the right. We have been
> experiencing slow draining on the disposal side and it especially sucks when
> washes pots and stuff on that side. As it backs up, if I turn on the
> disposal and pushes it right through. I was told by a neighbor that the
> drain from the disposal to the trap may be clogged or that it needs more of
> a down angle. I took a picture here:
>
> http://img399.imageshack.us/img399/6283/1000814sg0.jpg
>
> It ain't clogged. I do notice the the drain from the disposal is going
> down, but that the hole assembly on that side is lower than the main drain
> into the wall. Is this OK? It is kinda hard to see in the picture. To
> move the "T" up above the main drain would require the disposal to drain
> "up" into the "T" and this doesn't sound right either. The right side that
> goes straight into the trap drains fine.
>
> Could it be the disposal? We have tried a plunger, draino and some special
> disposal cleaner all to no avail.
>
> Thanks for any advice!!

Disposals need a nice smooth slightly downhill outlet to a wye drain
fitting. That's not what you have. Seems to me your plumbing system
needs to be redone by someone with more tools in his bag than a
hacksaw and a screwdriver. This project would benefit from some
professional help at best, or highy skilled DIY at the least.
Good luck.

Joe


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