single faucet

Hello All, In advance I would like to thank anyone who reads this post and helps me out. I am not knowledgeable in DIY plumbing work so any help would be most welcome. I had a leaking faucet. Picture attached. From videos on you tube, I understood that the cartridge needed to be changed. So I...

This is stumping me, maybe someone has an idea. In our one year old house in Texas, slab foundation, PEX throughout. The cold water faucet on the bathtub is the *only* faucet experiencing the problem. *Open the faucet. *Water comes out at full pressure for about 2 seconds, then drops to just a...