I need some plumbing work done in my house and called around a few plumbers. Amongst other things, I need to replace my water heater, add an exterior run and add a dishwasher run. I also have a low pressure issue in my bath/ shower. I have PEX supply lines throughout the house.
So my conversation with the first plumber was going great until I mentioned the low pressure problem and my desire to install a Manabloc manifold with a home run system. The current branch and tee set up is awful (bends, elbows, tees and couplings everywhere). As my main water supply line is only 1/2", the guy immediately suggested thousands of dollars worth of work digging up my yard and under the my foundations to install a larger 3/4" main water supply line. So I went from suggesting a manifold and home run system to him giving me a quote for $4,700.00 and that isn't even touching the things I was calling him for to begin with.
My rationale is this; I have excellent water pressure everywhere in the house except for my washing machine and bath/shower and it really isn't that big a deal. My vanities and exterior hose pressure is strong it just takes a long time to fill the bath; it is a soaker tub.
Am I right to think this doesn't sound right? I mean, if my main water line was aneamic, wouldn't all my fixtures have low water pressure? Would a manabloc and home run system really be a "waste of time and money" as this guy is saying or is he trying to give me the shaft? I can admit that I am sceptical but something just isn't adding up here. I really want to go with the manifold to clean up the current PEX "spaghetti fest" that is my current supply system. Is my solution a bandaid fix or something that I should do regardless of my supply line shortcomings?