I've searched the forums using many different search terms, but can't find an answer to my question.
I had a plumber install a 4" PVC closet bend to a ABS pipe system (used a Fernco fitting to connect the two), but the problem is, the top of the 90° closet bend is only 3/4" below the finished floor surface. I'm pretty experienced at doing bathroom renovations and so told the plumber to leave it for me to finish off. He left me a closet flange, and a section of 4" pipe, telling me to do a hub to hub connection, using a stub to join the two.
When I try to do that, and cut the hub part of the flange, it results in about 1/2" of hub remaining, so essentially, the stub would be inserted and glued to only 1/2" of closet flange hub. That doesn't seem to me like it's enough to ensure a good enough hold.
My thought is to use a Spigot Closet Flange to insert into the hub of the closet bend. The Sioux Chief Closet Flange spigot I found at HD has a spigot that is 1 1/16" long. And so it traverses the 3/4" of airspace before reaching the closet bend. When fully depressed into the Closet bend, it would contact only 15/16" of PVC.
1) Is that enough surface to ensure a long term seal?
2) I'm guessing that cutting a 1/4" piece of pipe to fill in the gap at the bottom of bend would be a risky move?
3) Would I be better off ordering this EZ Flow Flange with a long spigot, then cutting that spigot down to size?
The Sioux Chief has a very thin stainless steel ring. I want a high quality closet flange, and don't mind paying a bit extra. If #3 is the way to go, do you know where I can get one with a PVC Closet flange Spigot (with at least long enough spigot) with a Stainless steel ring (with decent thickness) that is of high quality?
Thanks all.
I had a plumber install a 4" PVC closet bend to a ABS pipe system (used a Fernco fitting to connect the two), but the problem is, the top of the 90° closet bend is only 3/4" below the finished floor surface. I'm pretty experienced at doing bathroom renovations and so told the plumber to leave it for me to finish off. He left me a closet flange, and a section of 4" pipe, telling me to do a hub to hub connection, using a stub to join the two.
When I try to do that, and cut the hub part of the flange, it results in about 1/2" of hub remaining, so essentially, the stub would be inserted and glued to only 1/2" of closet flange hub. That doesn't seem to me like it's enough to ensure a good enough hold.
My thought is to use a Spigot Closet Flange to insert into the hub of the closet bend. The Sioux Chief Closet Flange spigot I found at HD has a spigot that is 1 1/16" long. And so it traverses the 3/4" of airspace before reaching the closet bend. When fully depressed into the Closet bend, it would contact only 15/16" of PVC.
1) Is that enough surface to ensure a long term seal?
2) I'm guessing that cutting a 1/4" piece of pipe to fill in the gap at the bottom of bend would be a risky move?
3) Would I be better off ordering this EZ Flow Flange with a long spigot, then cutting that spigot down to size?
The Sioux Chief has a very thin stainless steel ring. I want a high quality closet flange, and don't mind paying a bit extra. If #3 is the way to go, do you know where I can get one with a PVC Closet flange Spigot (with at least long enough spigot) with a Stainless steel ring (with decent thickness) that is of high quality?
Thanks all.
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