Hi there! I could really use some help. My husband and I just installed a new all in one sprayer/faucet in our kitchen sink. It's one of those groovy ones that the sprayer and faucet are in one center unit. The sprayer/faucet had great pressure...for a day. Now I have lost the pressure that I frigging loved. It's a brand new unit. I have to mention, because I think it may be relevant, that our house is almost a hundred years old and I don't think any of the pipes have ever been flushed/cleaned by a professional. There are no leaks from any of the hoses below. I have no idea what to do. Any ideas?!