Kohler P-trap CP-9033 installation

EFS · Apr 22, 2013

Hello,

I have Kohler P-trap model: 9033-CP

That needs to be installed and the installer told me it cannot be installed with the flange that is supplied as the flange is too shallow.

What he left me with is:

I contacted Kohler and got nowhere as they send me a link to installation instructions:
http://www.us.kohler.com/webassets/kpna/catalog/pdf/en/1108185_2.pdf
Which are, frankly, not that helpful.

What needs to be done, so this trap can be installed with the flange it came with; I want that look and not the bulky semi-round flange that is typically installed on regular chrome P-traps.

My guess is that he needs to open the wall and install whatever he glued in front of the wall behind the wall plane rather- am I missing something?

Thank you.

hj · Apr 22, 2013

From the picture, it looks like he has a "spigot" trap adapter right into a tee which is flush with the wall. if so, there is no way to make it "shallower".

Sponsor · 2022-01-29T12:20:58-0800

EFS · Apr 22, 2013

hj said:
From the picture, it looks like he has a "spigot" trap adapter right into a tee which is flush with the wall. if so, there is no way to make it "shallower".

can this "spigot" trap adapter be recessed into the wall?

Asktom · Apr 22, 2013

Use a deep box flange.

SewerRatz · Apr 22, 2013

Bottle traps, illegal here in Illinois.

Jadnashua · Apr 22, 2013

Without knowing what's in the wall, there's no way to tell if it could be moved back easily. It would also require tearing up the wall. If that chromed piece is just decorative trim, you could grind off the nubs on the tubular fitting (Desanko) to make it slightly smaller in diameter (it would make it harder to tighten the fitting up to make the seal with the trap arm, though), but it may still have a gap between the end of the trim and the wall. Keep in mind, to make the seal, that nut on the Desanko must be accessible so it can be tightened down. As Ron indicated, that's a bottle trap, not a P-trap, and in some places, they are not allowed. They are much more prone to getting clogged up with hair and other crud than a p-trap. And, because of the way they are constructed, you cannot run a snake through them to help clean them out.

EFS · Apr 22, 2013

jadnashua said:
Without knowing what's in the wall, there's no way to tell if it could be moved back easily. It would also require tearing up the wall. If that chromed piece is just decorative trim, you could grind off the nubs on the tubular fitting (Desanko) to make it slightly smaller in diameter (it would make it harder to tighten the fitting up to make the seal with the trap arm, though), but it may still have a gap between the end of the trim and the wall. Keep in mind, to make the seal, that nut on the Desanko must be accessible so it can be tightened down. As Ron indicated, that's a bottle trap, not a P-trap, and in some places, they are not allowed. They are much more prone to getting clogged up with hair and other crud than a p-trap. And, because of the way they are constructed, you cannot run a snake through them to help clean them out.

I am CT- anybody who knows whether they are allowed in CT?

hj · Apr 22, 2013

quote;can this "spigot" trap adapter be recessed into the wall?

Not if the face of the fitting is flush with the wall, which is what it appears to be.

Kohler P-trap CP-9033 installation

EFS

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hj

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EFS

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Asktom

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SewerRatz

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EFS

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hj

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