Need a PVC alternative For bad Plumbing!

[FairlawnPlumber]

Hello everyone, I am New to the forum. I recently changed out my My faucet and noticed that the piping underneath is quite strange and not done correctly. I've attached some photos you can see what i'm talking about. How could I fix this piping or replace it.
Are there any alternatives?

 

[FairlawnPlumber]

Bump

 

[FairlawnPlumber]

Bump

 

[breplum]

PVC is not code to be used inside buildings for water supply (for a host of legitimate reasons).
I recommend to repipe completely.
Neither your kitchen nor bathroom have proper vent.
You have serious issues and should consider whoever inspected your house upon purchase as a worthless idiot and make a claim.

 

[FairlawnPlumber]

PVC is not code to be used inside buildings for water supply (for a host of legitimate reasons).
I recommend to repipe completely.
Neither your kitchen nor bathroom have proper vent.
You have serious issues and should consider whoever inspected your house upon purchase as a worthless idiot and make a claim.

Thanks for the advice I will definitely look into this