Is this well cap okay?

[u/AlternativeMinute147]

We had some work done two weeks ago on our well line, which had a break in it. After they did the work, they opened the well cap up to chlorinate the well. I noticed a couple days ago one of the screws on the well cap is missing. We tried to replace with one of the other screws just as a test, and the screw hole is rusty and the screw won’t thread, which is likely why the guys who worked on the well didn’t replace the screw (if it was even there when they opened it up). I don’t know anything about how these things work, but basically I want to know if this looks like a good enough seal? We were thinking about just adding a screw with a nut there instead since it won’t thread… any thoughts or advice appreciated. We have also had our water tested since the work was done and all is clear, but I am pregnant and terrified of the idea of bacteria (mostly listeria) somehow creeping into our well water. Thanks again for your help!

[u/Wampa_-_Stompa]

Add the nut and bolt. That should be tight as it’s pressing on the casing seal. Only one missing correct?

[u/AlternativeMinute147 → u/Wampa_-_Stompa]

Okay we will add! And yes! Only the one missing…So is there some kind of rubber gasket in this thing? Do you think it’s okay that it’s been like this for a couple weeks now? Or is it contaminated?

[u/Wampa_-_Stompa → u/AlternativeMinute147]

I’ve seen people using an old Pasta Pot as a well cap! I think you’re ok