Replacing a Mansfield 160 with a Toto Drake II or Ultramax

Users who are viewing this thread

ADInosaur

New Member
Messages
4
Reaction score
0
Points
1
Location
Chicago, IL
I just purchased a loft condo and the toilets are pretty old and in need of replacement.

I would like to replace a Mansfield 160 with a Toto Drake II or Ultramax II.

The Mansfield bolts are 11" from the wall. Is is possible to fit either the Drake or Ultramax? Specs show both with 3/4" space from the wall on both so I'm worried 11" just isn't enough room.

I was trying to dig up specs on the Mansfield 160. I think it's a 12" flange toilet and hoping I can figure out if a Toto will fit.

Is it very hard to install a offset flange and buy myself an inch?
 

Terry

The Plumbing Wizard
Staff member
Messages
29,294
Reaction score
3,075
Points
113
Location
Bothell, Washington
Website
terrylove.com
The original Drake will install at 11" but not the Ultramax II or Drake II.
Are you measuring to the wall? Or to the baseboard? Because I don't remember removing the Mansfield 160's with 11" roughs.

mansfield_toilet.jpg


Mansfield Alto 160
I toss a lot of these.

mansfield_moe.jpg
 

ADInosaur

New Member
Messages
4
Reaction score
0
Points
1
Location
Chicago, IL
So this is basically what I'm working with:

Measuring from the wall to the bolts. Looks like 11".

I definitely was hoping to find a way to get a Toto that had a more modern flush than the original Drake.

Are you anti-offset flanges or?
 

Reach4

Well-Known Member
Messages
35,482
Reaction score
3,662
Points
113
Location
IL
Are you anti-offset flanges or?
Some offset flanges are good. Some are bad.

But to install one, you have to go into the floor. It's not like an adapter between the existing closet flange and the toilet.

I had a flange with a 13+ inch rough. I made my own new closet bolt holes to fit the 12 inch Unifit to exactly the distance I wanted. I think you could do the same except have the new holes closer to the wall than the slots are. https://terrylove.com/forums/index....rance-with-14-unifit-and-offset-flange.66596/
 
Last edited:

ADInosaur

New Member
Messages
4
Reaction score
0
Points
1
Location
Chicago, IL
Some offset flanges are good. Some are bad.

But to install one, you have to go into the floor. It's not like an adapter between the existing closet flange and the toilet.

I had a flange with a 13+ inch rough. I made my own new closet bolt holes to fit the 12 inch Unifit to exactly the distance I wanted. I think you could do the same except have the new holes closer to the wall than the slots are. https://terrylove.com/forums/index....rance-with-14-unifit-and-offset-flange.66596/

Yeah, I know an offset would be more of a pain to install. Just really was hoping to fit a Toto Ultramax II or Drake II into the space. Your method looks interesting. I guess I need to do more research on a Unifit. I know nothing about that.

Do not install an offset for that. It reduces performance.
The 744 Drake series will work there.

Yeah, I just don't see the point in a Drake. The biggest reason I want to the Toto is for the tornado flush and that model doesn't have it.
 

jadnashua

Retired Defense Industry Engineer xxx
Messages
32,731
Reaction score
1,160
Points
113
Location
New England
You might make it fit, but don't count on it for certain. The spec sheet says on a 'normal' install, there's 5/8" space behind the toilet. You can usually fudge 3/8" or so on the existing flange, but then, the back of the tank would be tight against the wall. Note, though, that that 5/8" is 'nominal', meaning it could be a little more or a little less. A flange's opening is in the order of 3" minimum, and the outlet of the toilet is 2-1/8", so you can move it slightly and still let it open directly into the outlet.

If the wall isn't perpendicular (i.e., plumb), that can either give you a little more room, or a little less.

The Vespin II is essentially a skirted Drake II. It does use the unifit. It normally has about 3/4" behind it, so same situation, with a slight bit more leeway. But, if it didn't work out, you could buy a 10" Unifit (it comes with a 12" one), and it would add two more inches behind and certainly fit.
 

ADInosaur

New Member
Messages
4
Reaction score
0
Points
1
Location
Chicago, IL
You might make it fit, but don't count on it for certain. The spec sheet says on a 'normal' install, there's 5/8" space behind the toilet. You can usually fudge 3/8" or so on the existing flange, but then, the back of the tank would be tight against the wall. Note, though, that that 5/8" is 'nominal', meaning it could be a little more or a little less. A flange's opening is in the order of 3" minimum, and the outlet of the toilet is 2-1/8", so you can move it slightly and still let it open directly into the outlet.

If the wall isn't perpendicular (i.e., plumb), that can either give you a little more room, or a little less.

The Vespin II is essentially a skirted Drake II. It does use the unifit. It normally has about 3/4" behind it, so same situation, with a slight bit more leeway. But, if it didn't work out, you could buy a 10" Unifit (it comes with a 12" one), and it would add two more inches behind and certainly fit.

Thank you. Is there a recommended way to measure for the skirt and make sure that fits with the water supply?
 

jadnashua

Retired Defense Industry Engineer xxx
Messages
32,731
Reaction score
1,160
Points
113
Location
New England
From the centerline of the toilet, where is your existing water supply? It would only likely be an issue if you tried to use the 12" Unifit, as then, the skirt would be almost tight against the wall along with the tank. If you bought the 10" Unifit adapter, you'd have nearly 2". At the worst case, you might need to swap the valve to an offset angle one. Dahl makes some nice ones. https://www.dahlvalve.com/products/mini-ball-valves/skirted-toilet-kits.php
 

Slomoola

New Member
Messages
16
Reaction score
0
Points
1
Location
OKC, OK
Looks like a 10" rough in to me. Your current tank is parked on the wall.

Those Mansfield 160's are good flushers. Don't be surprised when you "upgrade" with a Toto you are let down. Keep the Mansfield unless you need to save water for some reason? Earth is covered with 80% of it.
 
Top
Hey, wait a minute.

This is awkward, but...

It looks like you're using an ad blocker. We get it, but (1) terrylove.com can't live without ads, and (2) ad blockers can cause issues with videos and comments. If you'd like to support the site, please allow ads.

If any particular ad is your REASON for blocking ads, please let us know. We might be able to do something about it. Thanks.
I've Disabled AdBlock    No Thanks