Sink drains into sump

So I have a mess of plumbing for my kitchen sink and sump pump. the sink currently drains into the sump pumps dry well. obviously this needs to be fixed and connected to the septic long term but I have a short term question. The sink drains all the way into the sump untill the pump comes on to pump it out (I can watch the water flow in when the sink is on). should some kind of check valve be added to stop that from happening? is the white part in the vertical sump line a check valve that doesn't work? thanks in advance

Help with floor drain backflow

Hello Citizens of Reddit, I am in need of some advice here. I have a corroded floor drain that you see in the picture. This drain in my basement seems to back flow under extremely heavy rain. It has caused some water damage as a result. 1. I would like to prevent water from coming back up, so I bought a back flow preventer and try to replace the drain cover with it. Can any of you folks think of a better solution to this issue? 2. In an effort to try to take off the existing cover, I scraped away some of the flooring to reveal more of the drain cover. This appears to be a cast iron cover that was cemented down. Before I take an angle grinder to the cement surrounding this cover, I would like to see if there are other solutions that could be less destructive. I can foresee the angle grinder solution going very wrong. Any advice would be appreciated! Thanks Reddit!

What is this part on a prier cold stem?

Two water main valves?

I’m not sure what I’m looking at here. I know one of them turns off the water because I had to reach back there to turn the water on when we moved in. I believe it was the bottom one. I’m not sure what the top valve does. The wall to the right is an exterior garage wall if that helps.

Leaking sink?

Hi, does anyone know what this pipe to knowhere is (under kitchen sink)? It seems to be plugged with something soft and has just started dripping.

garden faucet

old house, the faucet is dripping. take it out. 14 in long. one end is a washer and the other end is shown in the picture. Any idea what brand it is ? no texts left. Thanks

Is this normal? Blue stuff ontop of water in my softener

What is the silver round thing to the right with white top and bottom? Also feel free to rate/critique the install! Thanks in Advance!

What is this?

What is the purpose of this? Preface by saying I know nothing about plumbing…

Drops from waste pipe.

Hello! I have water appearing in a few fittings from a waste pipe I fitted. Should I be looking to stop the drips before using solvent… or will the solvent fix the problem? Thanks.

Filling the gap at base of acrylic tub

The original plumber who set the tub was fired from the job. They came and tiled the floor. New plumber finished the house and did not touch the tub. My wife is worried about getting water under it before we move in. Is there anyway to seal it that looks visually nice besides a very large line of caulk?