Foul odor coming from toilet tank

Recently noticed a strange smell coming from my bathroom, figured out that it’s most likely coming from the toilet tank. Does the inside look abnormal at all? Not sure if it’s mold or something else. Smells almost like rotten vegetables.

Opinion on bill

Looking for opinions on this bill. I have been disputing since December because they still have not provided camera footage and the quote I was given over the phone was 1/2 of this with a 30 day warranty. The drain stayed clear for 3 days then I had another company come out for $900 and clear the line again. Have not had an issue since. I don’t mind paying if it’s legitimate but I feel like they are running a scam.

Why is there a hole in my 3" PVC s and d elbow

I bought a pop up emitter. I think this elbow came with it. It has a hole, which I didn't expect, so my first attempt at installing it resulted in a big leak. It's labeled NDS 3po2. The NDS web site wasn't helpful. I replaced it with the same size but without the hole. Any ideas?

Had washer and dryer installed and having issues.

I had a washer and dryer installed today and it was done correctly. They ran a quick test to make sure the washer was working correctly. Now all of a sudden the toilet water in the bowl is low in all of the toilets and the drains for in the shower are draining really slow. I have limited plumbing knowledge and have no intention of tackling this myself but looking for insight on what might have happened. Also this is a new construction home and was built this year and just finished being built end of August.

Is it ok to have my outdoor washer drain into the sewer hole?

I’m clueless, would appreciate any help.

Plumber left tool. What is it?

Hired a plumber and they left this tool. It’s been days and he hasn’t come back for it yet. What is it?

Sigh

I work for a large contractor. We got called out to finish a job that was started by another (normally) reputable company. This is for an apartment complex. The maintenance manager started noticing stuff like this. The main line into the building was leaking under the slab, and he was under the impression they were going to fix that in the bid. Not only did they not have any intention of solving their biggest problem, they littered the walls with these kinds of goodies. Random sharkbites to old cpvc where they claimed it would be too hard to repipe it. They even used sharkbite couplings to connect the brand new pex upon occasion. I can definitely see why they got the boot. Thanks for the business, I guess.

What plungers are you pros using?

I do maintenance and I'm really sick of flimsy plungers that don't reform or just suck in general. Any brand/model recommendations? I'm forced to order through Fastenal sometimes Granger and their selection is garbage.

Will the copper touching the galvanized unistrut cause a problem in a dry basement? Mounting a tankless and I want to make it look perty.

Shower handle not working correctly?

I turned the faucet on and noticed the faucet felt loose. Then the faucet isnt turning how its supposed to. I try turning the faucet off but water was still running. If I try to turn the faucet all the way to the right how its supposed to, water runs but if I keep it in this position of how I turn I have in the picture, the water turns off. How do I fix this?

How to open/separate those two pipe?

Stupid question maybe, but how should we open or separate those two pipes? I’m not into plumbing so I don’t know either how or which tools to use.