Pride Plumbing came out and provided a cost estimate to repipe and replace the polyethylene water supply lines under the house in the crawlspace, going to the fixtures in the kitchen, one bathroom (sink, toilet, and bathtub/shower), the washing machine (installing a new plastic washer box and hot and cold hose bibs or boiler drains), and the water heater, with new PEX piping and fittings (installing new 1/4 turn water shut-off valves on each fixture inside the house along with new above-floor stainless steel braided water supply lines) and replace two outside hose bib spigots with new Woodford frost-free models. Also, install a plastic plumbing access panel behind the shower for easy future access to its water supply lines and valve.