yes
If the dispenser is truly PVC and not some other plastic, it should work but you must be able to spread the crack open so that the cement will coat the entire inner surface of the crack then apply pressure to close the gap. Just putting a coating on the outside of the dispenser around the crack will not do it. The cement has acetone as one of its components which softens the PVC and creates a "weld" between the surfaces. Hope this is helpful.
The temperture conditions your in have some effect but max setting time 5 to 15 seconds. I suggest you cut all pipes and fittings mock them in place put a mark on each joint and connectting fitting so you can clean and glue joints and line them up with your marks
The cement has some volatile chemicals in its formula and vapors require proper ventilation when in use. It would not be an issue if the container remains sealed BUT you should contact the airline first to see if they have any restrictions regarding the transport of this type of cement. Some products can only be transported by truck and must be labeled for the type of chemicals. See the partial MSDS sheet in the pictures.
you need to check your local codes, most local codes what to see a visible cleaner along with the adhesive
no
No. This is for PVC pipe and fittings.
even if it works properly you might not pass inspection in some cities, county, or states, the inspector needs to see a visible purple primer to pass
be more specific the tub it's or the piping
Show them the can, and a open minded inspector should except it, if not reschedule inspection and wipe some primer around all joints. sometimes codes have to catch up with technology