After some wiring upgrades in my house I went around with an outlet
tester to confirm all polarities and grounds were correct.

All tested good.


Later, doing some plumbing work, I noticed that on one run of conduit
(from 1932) is loose at the junction box due to stripped threads.


Even though the ground on the circuits associated with this run test OK
with a circuit tester, with my ohm meter it shows 200 ohms and I don't
like that.

I took two ground clamps and connected them to either side of the poor
junction and wired them together and the ground at the outlets shows
about one ohm which should be OK.

My question is:

Is it permissible to leave things like that? If not I might as well
replace the entire run...which is going to be a PITA.


Otherwise, since there are just a few lamps on these circuits, can I use
a two prong outlet...the type with no ground? I see they are still being
sold so presume there are some uses for them.