11:45AM | 04/25/06
Member Since: 04/24/06
3 lifetime posts
I need to replace a section of ABS sewer pipe that is blocked by roots. The bad section is where a 4" pipe meets a 3" pipe. It looks like originally, the 3" pipe was slipped into the 4" pipe and concrete was put around the joint to create a seal. I plan to cut out the bad section and use a reducer to change size and do the last joint with a rubber coupling (Fernco). I have 2 problems. The current connection was placed in such a way as to slightly change directions (about 10 degrees) because the 4" section doesn't quite line up with the 3" section. Will the rubber coupling provide that much flex? The other problem is getting the rubber coupling to slide easily enough to get the connection in place. Can I lubricate the pipe with glyceryn or some other lubricant? Also, will the rubber coupling keep roots out or do I need to do something else?



12:46PM | 04/25/06
Member Since: 01/24/06
1626 lifetime posts
You could not pay me enough to install a "Fernco" coupling

Have you thought about a Mission coupling and No Hub couplings with No hub cast iron fittings rather then try to deflect a piece of rubber and hope it has any integrity?

You do know that cast iron fittings afford you various angles like 1/16 bend 1/8 th bend 1/32 (11/4, 45 deg, 221/2 degree or any combination there of

Trying to deflect a piece of rubber is not really what a semi skilled mechanic would attempt.

Oh well to each his /her own guess if no one can see it who cares?


01:06PM | 04/25/06
Member Since: 04/24/06
3 lifetime posts
I had not realized that bends less than 22 1/2 were available.


03:57PM | 04/25/06
Member Since: 04/24/06
3 lifetime posts
I had not realized that a 1/16 bend was available. After your reply, I went out and found one along with 2 connectors. It looks like exactly what I need.


10:04AM | 04/26/06
Member Since: 01/24/06
1626 lifetime posts
Your very welcome

Cast Iron like Galvanized drainage fittings come in various angles

In Cast they are called 1/32 1/16 /1/6 1/8 1/4 and a return bend (180 degrees)

In Screw drainage the

1/32 = 11/14 deg

1/16 = 221/2

1/6 = 60 deg

1/4 = 90 deg

The reasoning is piping has no "play" especially screwed pipe has no forgiveness so one has to be highly skilled and to allow for those jobs where piping doesn't line up exactly as planned we have fittings of various angles.

With no hub cast iron we can deflect the piping to a certain degree like lead and oakum joints there is some play

Then of course we can always make a crooked thread with a Ridgid 65 R threader



Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.



Post_new_button or Login_button

To test the boundaries of small-footprint living, interior designer Jessica Helgerson moved her family to a 540-square-foo... Filling an underutilized area beneath the stairs is a smart way to save space. Doing so with a stash of wood, however, is ... The Audubon Society inspired wallpaper in this Adirondack-styled mudroom will get you in the outdoor mood. Grab your coat ... Chalkboard paint opens up endless possibilities for customizing your dresser time and time again. Use chalk to label the c... A fireplace in the bathroom creates the ultimate setting for relaxation. Homeowners often choose electric or gas over wood... This roomy boot tray made from punched metal stands up to all the elements. Station it in your mudroom or at your back doo... There’s nothing like a new set of cabinet hardware to refresh a room. The possibilities are endless: Go modern, rustic, or... FLOR tiles are an affordable way to customize a carpeted floor covering for any space. Make anything from runners to wall-... Chalkboard paint features prominently in this elegant yet unpretentious headboard design. Add a new message daily to reflec... Salvaged boards in varying widths and colors make up the dramatic accent wall in this attic space. The high-gloss white of... The indecisive homeowner need not fret over choosing one (or even two) cabinet colors. The kitchen cabinets in this artist... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... Simple and striking, a couple of pieces of "lovingly used" furniture creates a special kind of charm. A weathered chair fo... First dress up your metal shelves with a coat of paint in an accent color that complements your kitchen decor. Then arrang... Dark wood shelving and a matching upholstered bench keep this closet sleek and refined. The large window brightens the sub...
Newsletter_icon Flipboard-glossy Facebook Twitter Pinterest Youtube Rss_icon