Grind ceramic corner sink pedestal top?

[rlyoung]

I was given a Pedestal Corner Sink to install but when placed on the pedestal the sink rocks and isn't level--it tilts backwards toward the wall by a good 1/4 inch. Can I grind the top of the pedestal so that the sink would sit level? A diamond flap wheel perhaps? The sink ultimately attaches to the wall and I can use shims to make better contact to the pedestal if need be. That's my present plan. The instructions seem to indicate that the pedestal is meant to take some weight, and not just be loose under the sink hiding the plumbing. Thank you.

 

[Twowaxhack]

I’d probably shim it after anchoring it to the wall. I’ve never grinded one, others may have.

 

[sawguy]

Shim the bowl to level and anchor to the wall like two wax said. Then get ready to cuss trying to hook up the trap.

 

[rlyoung]

Thanks. Yes, these things look nice in a catalog, but plumbing them in where a sink never was in a remodel can be challenging. Cussing started 2 days ago.

 

[FishScreener]

Are you sure, that the pedestal is supposed to actually contact the sink unit. We installed three as part of ADA/ABA upgrades last year, and the sink hard mounted to the wall, and there was a slight gap, at the top of the pedestal, which secured with some nylon bolts. The ones we have installed which were pedestal supported had packs of hard rubber supports/shims and you got them leveled up and then sat the sink down on top, and secure the back of the sink to the wall.

It is really important to make sure everything around the sink is square and true. More so with a corner mount.

 

[rlyoung]

I'll double check, but the person who drilled holes in the wall followed the directions which I believe simply said lay the sink on the pedestal, slide the works into the corner and mark the wall through the holes in the sink back. No reference to getting the sink level on the pedestal using shims or anything else. I'll check the packaging for any missed components. If designed as it appears to be, the u-shaped top of the pedestal is meant to insert into a u-shaped recess in the bottom of the sink, making the pedestal unremoveable without raising the sink. I could possibly raise the sink so that the pedestal could slide in and out, assuming it looks OK, there is wood in the wall for new holes, and the wall hardware alone would support the weight of the sink. I think I'll win in the end, one way or another.

 

[Zanne]

If the pedestal conceals/covers the trap, it likely is designed to be removable. Oh what am I saying, these manufacturers don't design things with plumbers in mind! LOL.

 

[Aloha Mark]

You'll have to do this the old fashioned way by having a helper mount/hold the sink using the bolts or studs and using a 2 x 6 (cut to size) to mimic the pedestal and determine the exact height where the front of the sink will appear level. Do not let the sink hang using bolts alone.

Is the pedestal upper surface level when the bottom rests on the floor? Whether or not this is causing the entire assembly to wobble, you will need to create a shim from wood or HDPE (High Density Polyethylene) plastic. The latter can be machined to the right thickness with CNC equipment or multiple passes with a router.

 

[rlyoung]

The pedestal isn't level and the sink tilts in all direction on it. I've shimmed it so we should be OK. The sink isn't made well in that you get one part level and another is half a bubble off. I've got the back of the top level with a hair tilt towards the drain so that splashed water doesn't run back to the wall, which is drywall unless I put something more protective on it. The tailpiece is plumb and water drains OK and looks even around the drain. Probably the best I can do, and should be fine. It's my sink, not a customers. Maybe I'll try grinding on an old fixture sometime with a diamond disk and water just to see how that goes.