1. Install a 2-inch test tee at your washer machine stack, even if not required by plumbing code.

2. When manifolding your copper risers, install a hose bibb in the outlet side of the cold-water manifold (use this hose bibb at topout phase at rear of house later, no waste.)

3. Pressure test copper fittings by turning on water meter.

4. Place a test ball or some other mechanical plug in the building drain at the cleanouts.

5. Attach a 6-foot double ended washer hose on the hose bibb at the copper manifold. Run water to flush flux out of line.

6. Screw opposite end of washer hose onto the hose thread of the
   “T-Plug™”.

7. Turn on hose bibb at manifold.  Water will fill soil pipe.  Leave on until water overflows at vent stack (head).

8. Disconnect hose from “T-Plug™”.   One way valve will not allow water to come back through.

9. Screw cap on “T-Plug™”.  Test is now complete!

Whole House Test

1. After installing all water piping and DWV, pressure test your water piping.

2. Place a test ball or some other mechanical plug in the building drain at the cleanouts.

3. Attach a 6-foot double ended washer hose to cold side of washer box. Run water to flush flux out of line.

4. Screw the opposite end of the washer hose to the T-Plug™.

5. Turn on washer box cold side hose bibb.

6. Fill until lowest vent overflows (single story) or cap off lowest vent of 1^st story so the second story fills to the lowest vent on the second floor roof.

7. Disconnect washer hose from T-Plug™ and washer box.

8. Screw cap on T-Plug™.  Test is now complete!

9. If test holds with no leaks, after inspection, apply ABS or PVC glue to hose threads, screw cap back on the T-Plug™ thereby solvent welding the cap in place.  This will effectively turn the T-Plug™ into a normal raised head plug, eliminating any chance of mold at a later date.

Single Stack Tests

Same as above, it’s less expensive to test the entire house than multiple single stacks that have 90-degree bends.  You effectively insure yourself against any mold issues at a later date by inspecting the entire house.

1. Check to see if cap is glued on, if not unscrew cap on T-Plug™.

2. Apply ABS or PVC glue to hose threads of T-Plug™.

3. Screw cap back on T-Plug™ thereby solvent welding the cap in place, effectively turning the T-Plug™ into a normal raised head plug eliminating any chance of mold at a later date.