Oatey 4 in. x 3 in. PVC Saddle Tee Kit

good quality and easy to add to existing plumbing

I used this to tie new 3 inch PVC into the 4 inch cast iron stack below my basement floor. To use this with cast iron you have to purchase the gasket. I used silicone caulk to "glue" the gasket to the saddle tee, and after letting the silicone set up, I cut out the hole carefully with a small knife. I used a 3 inch Diablo hole saw to cut into the vertical cast iron stack - getting the pilot hole through the cast iron took a while and I ended up switching from my cordless 18v drill to my corded drill (probably should have used the corded drill from the start), but once the hole saw started it went through the pipe like butter. I liberally used silicon caulk over the entire pipe side of the saddle tee gasket prior to attaching it to the pipe with the u-bolts and nuts - some silicone oozed out along the inside of the hole, easy enough to wipe off the excess all the way around. Let the silicone set and you are ready to go with the rest of the plumbing. Another reviewer talked about changing the diameter of the saddle to try and get a better fit, if you have 4 inch cast iron and the gasket - you don't need to do anything to it. The gasket will take care of the fit.

I've installed 3 of these on a buried 3" & 4" pipe that directs water from downspouts, patio drains, and retaining wall stains, out to the curb.Installation is straight forward enough, but the 4" and 3" pipes I was connecting to are all Schedule 30 DWV variety, the slightly smaller diameter / thinner cross section. This saddle is intended for Schedule 40 diameter pipe.Simple enough, I ordered a 3" PVC DWV adapter bushing from Supply House, and that easily allowed the transition from the smaller DWV to the larger 3" Sch 40 socket on this saddle. It also appears a 3" DWV coupler is the proper outer diameter to fit the saddle's socket, but haven't actually installed it that way.For the saddle connection to the slightly undersized 4" PVC, I cut an extra length of Sch 30 DWV pipe -- about the same length as the saddle -- split it open, and "wrapped it" around the existing buried pipe, securing it with PVC cement. This increased the diameter to that of Sch 40 PVC and the saddle fit perfectly. I drilled the opening through both pieces using a hole saw, only after they were glued together.One part of the instructions that's unclear is that, after gluing the saddle onto the main pipe (step 3), we're advised to "not disturb" for 2 hours, nor "apply pressure" for 8 hours. Step 4 instructs to install the included clamping bolts.I called Oatey to clarify whether I should wait 8 hours before "applying pressure" (installing and tightening the clamps) and told I should do that immediately after gluing (within 15 minutes, I was advised).PVC becomes soft when PVC cement is applied, so I wanted to make sure they didn't intend this to prevent tightening the saddle down so much that it deformed the main pipe.Rather than PVC primer, I chose PVC cleaner on this job, since the buried pipe was fairly dirty. I also used a pair of cheap 1" paint brushes for application of the cleaner and cement, to ensure good coverage.

Simple saddle connection. Ideal if you're tapping into an exiaring straight sewer line. Worked as described. No complaints!

Had to quickly tighten clamps to get it to hold in place which was a challenge whilst working in a small ditch.

This product is made for schedule 40 so I ripped another piece of NDS and placed it over my buried NDS pipe glued it with purple primer and blue glue then placed this saddle over the top and glued it down as well. The bracket is easy to install as well. Works perfectly exactly what I needed for my project, highly recommend!!

This is just the ticket if you are trying to tie into a buried 4-inch drain line and you're not in the mood to dig up the entire yard. As the product description says, this saddle tap is designed for schedule 40 pipe. Unfortunately, most rain gutter drains and many other plastic drain pipes are SDR35, which has a slightly smaller outside diameter than a 4" schedule 40 pipe. I found the saddle didn't seat quite perfectly onto my SDR35 (thin wall) PVC pipe, so we cut a small piece from a scrap of the SDR35 pipe as show in the photo, which matches the size of the saddle tap. This piece was sandwiched between the saddle and exposed portion of the buried pipe. It makes the fit to the saddle darned near perfect. Be sure to dry fit everything together before you touch any glue. We found it best to mark the tap hole with a marker and drill it out before assembling everything together with glue. Use a good quality PVC cement, work fast, and apply solvent to both sides of the sandwich piece, saddle tap interior and the pipe you are attaching to. Getting glue on your hands is inevitable, so wear gloves if you don't want to get messy. Hold tightly or clamp in place long enough for the glue to set, then quickly tighten the u-bolt clamp into place. This is just my experience - your situation/application may be different.

Purchased on before. Works as is should. I made a rubber gasket for the flange to pipe. Too bad is does not come with one. I don''t like gluing them to the pipe for a seal. Makes it permanent.