Angle of pipes under kitchen sink

mrcheez

I recently had a new sink installed and, since it was replacing a double-drop sink with a single-drop sink, the piping had to be replaced.

I had a look at the piping today and see that the first pipe appears to be angled slightly upward such that water/dirt will congregate up there first, rather than at the U-bend.

Does this look OK to the plumbers out there, or should I ask for it to be changed so it has a more flat or downward slope on the first pipe out of the drain?

colm_mcm

That doesn't look right to me anyway. Maybe there's an alternative shorter u bend piece available.
Can that one be cut down?
Looks like water will stay in the bottom of the pipe

mrcheez

colm_mcm wrote: »

Looks like water will stay in the bottom of the pipe

That's what will happen, but is there a problem with this as opposed to water staying in the bottom of the u-bend instead?

Risk of bacteria forming etc?

Water John

Don't see it as a problem. U bend is usually up fairly nearer the sink and has water in it always.

Calahonda52

Would not concern me, it could be rotated at the wall, clockwise,enough to create a slope in the top piece.
Just slacken the screw joint at wall and the one on the horz piece and rotate gently and retighten.
The advantage that setup has is that there is more room under sink than if u bend was directly under sink.

mrcheez

Calahonda52 wrote: »

Would not concern me, it could be rotated at the wall, clockwise,enough to create a slope in the top piece.
Just slacken the screw joint at wall and the one on the horz piece and rotate gently and retighten.
The advantage that setup has is that there is more room under sink than if u bend was directly under sink.

OK so I'll leave it for now as may need space for storage, but can revisit if it starts getting clogged easily.

TPM

Scrap the current setup
fit a bottle trap to the sink then pipe that to the existing pipe at the wall.
better trap and easier to clean as well