So a guy who said he is a contractor also did plumbing under my home. He used pes pipe, 1/2 size from the pump, that of course leaks, to all the rooms that need water, the bathroom sinks, washer machine and to kitchen sink, where there is only a small stream of water flowing from faucet. Did he use the correct size pipe? or was that too small for the use. There are also brass fittings all up and down the line that he put in, which runs over 20 feet from bath to kitchen..... any anwsers?