Preparing for our Rough In Test

[ShellyJ123]

we decided to DIY our plumbing in our new addition. We had a little experience but nothing prepared us for this big a task. We are getting ready for the rough-in inspection and capping all the drains and flanges. We put this sanitary tee with cleanout at the bottom of the waste stack where it goes to ground. But now we realize this will be a bit hard to get a testing balloon into.
Is there anything you all can suggest in order to block the 3" AND the 4" ?
Top and bottom are 4" the 2 sides are 3" with cleanout cap as seen on the right side of the image.
Worst case we can cut the 4" and put in a testing cleanout and same with the 3". But because it's all glued up we would have to use mechanical couplings on 1 side to put it all back together. Also this would not test the bottom joins

 

[hj]

You probably cannot insert a long 4" test ball through the 3" opening, and, depending on stuff we cannot see, the sanitary cross my be rejected.

 

[Sponsor]

 

[ShellyJ123]

we did try to insert a 4" test ball and you are right, it does not fit into the 3" opening.
Why would the cross be rejected? assuming the stuff you cannot see is what you think?

 

[Michael Young]

You probably cannot insert a long 4" test ball through the 3" opening, and, depending on stuff we cannot see, the sanitary cross my be rejected.

Why not just stuff a 4" pump ball into the gutline and cap everything else. Fill the whole damn thing with a 10' head of water. I like to cut in a wye in the main vent. I fill it up from there. Also, bridge you hot and cold together at an upstairs lavatory. Use a tee. cut in a boiler drain. Use a laundry hose connected to your washer box (and a garden hose). use the upstairs boiler drain to fill your DWV. Then you'll also be starting with about 60psi pressure on your water line. Hook up your air and pump that bastard up to 120psi.

makes it easy to fill the DWV.
makes is super-easy to find LEAKS in your water distribution system.

walk the job. Be sure you have your nail-plates to protect your pipes. look for strapping. are you water pipes on the WARM SIDE of any exterior walls? do you have proper thick-wall insulation in unconditioned areas. Just do a quick walk-through. If you fail the inspection, no biggie. fix what needs fixing and call it back in.

 

[WorthFlorida]

I do not see purple PVC primer on any joint except the one at the floor. If this tee cap on the right is for a clean out purpose only and not behind a wall, the inspector may allow it but it is always up to the inspector.

See page 2 and 6 of this guide.
https://www.co.lincoln.or.us/sites/..._-_helpful_hints_residential_construction.pdf