Hi everyone, thanks for your replies and sorry I'm so late getting back to you! Hope you're all well.
KTP: I would have jumped on your offer but I'm in the UK. Thanks for the tip on the studs. And yes, most things (including the contents of my septic tank) are in better nick than those studs...
Hello all, new member here.
Heavy, flaking rust on the flanges and nuts; lighter rust on the studs but still not great. The pipes just have autosol-curable surface rust. Picture here: https://drive.google.com/file/d/1D4gwSo_m6BejKZToSQXJsJQmavAz3_mh/view?usp=sharing
What do you suggest for...