What is this white hard puddy?

Whats the technical name of this.

I need to replace this but I can't find it online. Its attached to a spigot on a green roof.

What is this, and how do I get it to work normally?

Need to water our lawn. Just bought the house recently, and this faucet just trickles when I turn it. Why is it doing that? How can I get it to function normally?

Rusted screw removal

Does anyone know how to remove a rusted, broken off screw inside a bathtub overflow plate? I’m hoping to replace the plate but I need to get this screw out first…

How can I take this shit off? I tried everything for two days

Can I repair this myself?

Ran over this sewage pipe connector outside of our rented home. The landlord has Covid and is generally very difficult to deal with. Curious if I could replace it myself. If it’s possible to fix this on my own without too much trouble, how might I go about that?

Need help to find this part

Where can I order replacement of 3/4 inch and 1.5 inch connector for C901 pipes. Please help. Thanks !

Any advice?

Leaking flush assembly

The refill tube is dripping about 2 drops a second. That's like 172,800 drips a day. . .any way to stop this from drip drop dripping? Pressing up on the float does not stop the dripping.

What part is this bidet water line? I want to replace it because it’s a bit moldy inside and can’t clean it well enough.

Trying to help a long distance family member - any idea how to remove this sink’s stopper? Thanks