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Green Basics

Green Plumbing Systems Save Water and Energy

Design the Plumbing System to Save Water and Energy

Plan ahead to save hassles later

Plumbing systems are complex, expensive, and largely inaccessible when construction is complete. For those reasons, careful planning pays big dividends.

There are two sides to every residential plumbing system: supply and waste. Within those broad categories are a number of subsystems, many of which present opportunities for conserving water, energy, or both.

A well designed plumbing system is capable of saving thousands of gallons of water every year. In many communities, saving water also saves energy because a lot of electricity is used to pump water from source to houses.

With planning, the energy needed to make hot water can be significantly reduced. Solar collectors are one obvious answer, but even in homes with conventional heat sources energy savings can be sizable.

First, buy efficient appliances

Most of the opportunities for energy and water conservation in a plumbing system arise from specifying an efficient water heater, an efficient clothes washer and dishwasher, low-flow showerheads and faucets, and reducing water consumption. But the distribution system itself also has an impact.

Anyone serious about conserving water should start with the low-hanging fruit; that means that the greenest homes do not include a swimming pool. Omitting a swimming pool will also save energy, since pool pumps, filters, and heaters are notorious energy hogs.

Minimize the wait for hot water, cut the cost

Minimizing the amount of hot water that is wasted as homeowners wait for a sink faucet or shower to come up to temperature will save water (and in some cases, energy). If the source of hot water is at the other end of the house, this can quickly add up to thousands of gallons of water needlessly down the drain over the course of a year. If an on-demand water heater can be installed close…

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One Comment

  1. Steve R | | #1

    HDPE Drain Pipes
    Where can I get HDPE drain pipes for my new kitchen (sink & dishwasher)? I have been searching for what seems like forever with no luck. I am in need of an HDPE P-trap too, as well as an AAV that will fit. I'm in Pittsburgh.

    Thanks!

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