Thanks for responding. I took the aerator off, and still the pressure was low. The water has never flowed fast out of the hot water dispenser, so I can't say for sure that its pressure is low, but it does sputter some after I've run it for about 1 minute. I'm really baffled that both the hot and cold have low pressure. Any other ideas?

"can I just cap off the hot water line and install an instant hot water dispenser" Probably not ... if the pipes are that bad, they would probably crumble as you try to put a cap on them, and are ready to rupture in the wall anyway. "I don't want to replace the pipes because, to me, it's easier to run an electrical line then to crack open a plaster wall. " Ask a plumber ... they can usually repipe without having to make huge holes.

For the funny taste, you need to run the faucet until cool water comes out (empties out the tank and refills it). Do this several times and it will get better. If you don't use it much for a while you will also need to do this, because the water seems to get stale. Note that ISE has models with warantees ranging from 1 yr to 5 yrs with better faucets and don't get the cheapest hot1 and think it will be as good quality as the nickel gooseneck one. Also, they are using a new tank now. If you ask what made your old one leak and where it was leaking from, it might give you a clue to weather a better faucet, a different tank or brand, or even a different installer, would help you avoid the problem again. Also look at what temperature a unit heats to, and make sure it is ok with you if you get one that is 10 degrees or so cooler than another, esp if you like really hot tea. Boiling is 212 degrees, ISE heats to 200 degrees and some only heat to 190 degrees. Some people feel even 200 degrees is not hot enough for tea. It is personal preference. Sue

@lesliet770 what did you end up doing? I'm trying to figure out the same thing. The Delta faucet Artic Stainless doesn't match the Insinkerator stainless color. My local store recommended going with a white or black Insinkerator. I will have a white kitchen with black hardware. The white Insinkerator might blend better with my light quartz countertop.