2 Questions: ABS glue on wet pipe, and Fernco Fittings
#1
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Location: Ontario, Canada
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2 Questions: ABS glue on wet pipe, and Fernco Fittings
1. I am trying to attach to pieces of drain pipe together, but there is a slow drip coming from the line that doesn't seem to want to stop. I wad up some toilet paper to try and slow it down long enough so I can apply the glue and join but it seems to drip a couple drops on the glue before I join them. Am I at risk of the glue not setting properly or should I be fine as long as I let it setup for awhile?
2. I noticed when re-doing some drains in the house, that the original plumber over 20 years ago used Fernco fittings (the standard rubber coupler with 1 band clamp on each end) on the horizontal 3" drain pipe from my second floor washroom. He used it on 2 locations. Not sure if he had a leak at one point and decided to use this as a fix or what.
Now it hasn't leaked in all this time but I'm wondering because I am fixing up some of the plumbing if I should do do this portion or just leave it. I'm not sure what the code for those Fernco fittings is in Ontario Canada.
thanks
2. I noticed when re-doing some drains in the house, that the original plumber over 20 years ago used Fernco fittings (the standard rubber coupler with 1 band clamp on each end) on the horizontal 3" drain pipe from my second floor washroom. He used it on 2 locations. Not sure if he had a leak at one point and decided to use this as a fix or what.
Now it hasn't leaked in all this time but I'm wondering because I am fixing up some of the plumbing if I should do do this portion or just leave it. I'm not sure what the code for those Fernco fittings is in Ontario Canada.
thanks
#2
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1. The primer and glue are both solvent based and at least in my experience don't seem to be affected by a little water.
2. Technically "rubber boots" or Fernco couplings are not permitted by code. They may have been allowed back when the work was done. Even so my inspectors do not approve them in new construction but in repairs they look away when it's the best/only reasonable method. As a side note I've never had one fail and I've dug up some used on main drain lines where the ground has settled and moved quite a bit. They've been stretched and massively contorted and still hold tight so I would not worry that you have them in your house.
2. Technically "rubber boots" or Fernco couplings are not permitted by code. They may have been allowed back when the work was done. Even so my inspectors do not approve them in new construction but in repairs they look away when it's the best/only reasonable method. As a side note I've never had one fail and I've dug up some used on main drain lines where the ground has settled and moved quite a bit. They've been stretched and massively contorted and still hold tight so I would not worry that you have them in your house.
#3
No-hub couplers should be used to repair DWV pipe versus the flexible "fernco" couplers.
No-hubs have a full metal jacket and are approved for in-wall use. I can't imagine them being against any local plumbing codes.
No-hubs have a full metal jacket and are approved for in-wall use. I can't imagine them being against any local plumbing codes.

#5
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Fernco and No-hub fittings are not specifically un-approved by code for use. Unless specifically not permitted by local AHJ . They are permitted but it depends on the application. Shielded neoprene fittings are permitted to certain pressures. All no-hub and neoprene fittings have certain application boundaries which should be followed. Their use becomes unapproved if used for the wrong application.
Being that there is little pressure with waste water it would be an appropriate connection but also have to comply with the types of material being connected.
Unless Pilot Dane you know of a code, disapproving them, that I am not familiar with.
Being that there is little pressure with waste water it would be an appropriate connection but also have to comply with the types of material being connected.
Unless Pilot Dane you know of a code, disapproving them, that I am not familiar with.
#6
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Or just use the right cement.
PVC Wet Set, Wet Conditions Hot Blue Cement | Plastic Pipe Cements & Primers | Harvey
PVC Wet Set, Wet Conditions Hot Blue Cement | Plastic Pipe Cements & Primers | Harvey