[pzmember]

all right i want to get all of your opinion on collars. in new and remodel applications where there is new sub and finished floor i put my collar on the finished floor and use a stainless steel ring collar. wheather its vinyl, tile, wood, etc. i hate going to replace a toilet and having to use jumbo bolts, and rings, and stacking rings. its a little more work on tile to drill 6 holes but i think its worth it. what do you guys think. i hate all plastic collars, and the blue metal rings rust out. ive had great luck w/ the stainless and the bowl is very solid.

 

[ILPlumber]

That's what we successfully use. Sioux chief total knock-out.

 

[GrumpyPlumber]

I agree, hate PVC collars.

 

[Redwood]

Yea, I agree 1,000%

I also sock it down with brass or stainless steel #12 screws long enough to go through all the floor and subfloor for maximum grip.

When I run into a PVC or, ABS flange that had a painted steel ring rust out I use these 2 piece stainless steel replacement rings to repair them.
Oatey #42777 http://www.oatey.com/Plumber/Shared/ProductGroupDetail/726/Moss+Bay+Replacement+Flange.html
Raven Products #BFR7900 http://www.ravenproducts.us/plumb.htm#flanges

You remove the old ring entirely and the new ring clamps ont the 3 or, 4" PVC or, ABS flange and locks it in place...