How to resolve an uneven sink reveal on undermount sink
Joli LaBissoniere
6 years ago
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Comments (6)
Sina Sadeddin Architectural Design
6 years agonoreaster10
6 years agoRelated Discussions
Undermount uneven double sink drain is not lined to p trap
Comments (2)If you examine the tailpiece on the left sink you will notice that it tilted about 15deg to the right. That angle will most assuredly result in a leak. The tailpiece must be straight down from the sink. To get as bit more vertical clearance at the P-trap disconnect the cross tube from the left tailpiece and the trap. Cut the tailpiece off about 1-1/2" below the dishwasher inlet. Now re-connect the cross piece and it will be about 2" to 3" higher. Now attach a flange type extension tailpiece to the drain on the right sink. (Be sure to install the clear plastic ferrule on the flange before you connect it to the sink). You will have to cut both the cross tube and the tailpiece on the right sink to fit the baffled tee directly below the sink drain. You will have to cut the black metal pipe. That pipe is 1-1/2" cast iron and it can be very difficult to cut if not done correctly. It can be cut with a hacksaw or reciprocating saw, but keep in mind that cast iron pipe is brittle and if you try cutting it with a saw you run a high risk of shattering the pipe, leaving a very sharp and rough end, and if your luck is like mine it would probable shatter back into the wall, not to mention that you will probably wear out half a dozen good quality blades before you get it cut. The correct way to cut that pipe is with a cast iron pipe "snap cutter". You can rent a snap cutter from a local tool rental for about $15 a day, and I can assure you, if you try cutting with a hacksaw you will go through at least that much money in blades, not to mention an hour or more laying on your back in cramped quarters and cussing the whole mess. The snap cutter has a cast iron body with a crank on one end and what looks like a bicycle chain on the other end. The chain is wrapped around the pipe at the point where you want to make the cut and re-attached to the cutter. You then turn the crank a few times until you hear a snap or pop sound and the cut is complete. Once you have teh cast iron cut, discard both the cast iron pipe and the existing P-trap the use a Fernco coupling to connect a short piece of 1-1/2" sched 40 PVC pipe. Attach a PVC 1/16th bend(DWV grade 22.5deg elbow) on the pipe and another short length of PVC with a Trap adapter on the end of the pipe. Install a new 1-1/2" tubular slip type p-trap from the tailpiece under the baffled tee to the line to the wall....See Moreundermount sink, positive reveal - urgent question!
Comments (18)I think this depends on the sink, too. Ours has installation instructions that specify a negative reveal. Out of curiosity, I pulled the specs for the stainless version of the same sink (ours is fireclay, both standard undermount) and in stainless they specify a positive reveal. They're literally the same size sink, though the stainless has accessories that need the lip. Not sure why the fireclay has a negative reveal specified. We have a stainless sink w/ positive reveal now, and it does get gunky, for whatever that's worth. I don't know that it would be much better with zero or negative reveal, though......See MoreMay I see pictures of your undermount sinks with negative reveal
Comments (29)A negative reveal might be better for hiding imperfections in a handmade sink, like the Shaw's farm sink. If your top lip is especially wavy, or slanted (as mine is), then a negative reveal will hide that better. (But lots of people have Shaw's with postivie reveals. Mine is too wonky.) Regarding negative vs zero reveal, with a zero reveal, one will see the caulk, right? So that may or may not be an issue for someone. I prefer not to see the caulk, so I prefer even a tiny negative reveal (like 1/16th-1/8th). Regarding the question about why an undermount sink has to sit lower than the counter. The easiest answer is because that is the definition of "undermount." :-) There is also an "upmount" style where it sits above the counter. And there is a "flushmount" where the counter and sink are on the same level. But some of these styles can probably only be done with a farm style sink that sits on a base, and needs no support from above. Francy...See MoreUndermount sink reveals - post pics please!
Comments (3)Soapstone fans seem to me to be a special type, people who like not_seeing the rounded SS edges for example. The advantage to positive reveal is that you get an automatic ledge to perch custom cutting boards / drain boards. If you haven't thought through in advance what to router into the edge of your stone, with soapstone you are not stuck, as it is the one stone that can be worked with tools at home in your spare time, and sanded and polished. Most sink templates seem a bit too big for my taste; I wonder if inside a template-followed flush reveal cut it would be possible to hang a cutting board... To me, a flush reveal still shows a Lot of the sink top's round edge at all times, and a Lot more when you are not looking straight down (which is all the time), so a (minor) negative reveal solves that. That is a quarter inch less than the template, which leaves a little overhang, less than 1/8th, about 1/16th inch. I am planning a soapstone counter now, with even more negative reveal on one side. I expect I can use Schluter profile 45-degree transition trim strips to give a metal strength to the underside edge instead of letting moving pots hit bare stone when they get pulled out of the sink. Any structure or form can then be made to meld with the shape of the opening. Schluters are available in SS or anodized aluminum. Soapstone is the most easily sanded of countertop stones, so I can make it smooth on the underside too if I want. My proposed large-overhang would be only on one of the four sides, to reduce the psychological fear of bacteria enjoying a free ride underneath. A light can shine in there too, again for psychological support. A big overhang (inches) can then be handled and made to look professional. HTH -- and no I am not an expert, so if anyone wants to contradict me please go ahead and I may learn something. David...See MoreShould You Sell Or Should You Stay
6 years agoFilipe Custom Woodwork
6 years agoDee Sanchez
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