Size of water main
We just bought an old 3 story red brick row house in downtown Philadelphia. Our main water line is still the old (original?) lead pipe. We are thinking of replacing the old main with a new copper pipe, both to get rid of the lead and to increase the water pressure, which leaves a bit to be desired. I had 2 plumbers come by to give me an estimate. Prices did not differ much but one wanted to use a 1 inch pipe and the other a 3/4 inch.
The 2nd guy (3/4 pipe) told me we would need a new meter if we went to 1 inch. Right now, we have a 5/8 meter and going bigger is not an option due to the pricing schedule of the water company (everything that is not 5/8 is a LOT more).
1. Is that correct? I have read that 1 inch pipe with 3/4 meter is no problem, in fact it is recommended. Of course we have a 5/8 meter.
2. Does it make sense to go to 1 inch (obviously a bit more expensive) if we have a small meter? I am very concerned about the water pressure and would happily pay the $4-500 to have better pressure for the next 25 years.
Any help would be appreciated.