Tired of Wasting Water and Money on Old-School Plumbing

I’d be more inclined to try a low-flow showerhead before looking into greywater: it’s a smaller commitment, and the shower is easy to judge by comfort as well as water use. If the spray feels unpleasant, the savings may not seem worth it; I wouldn’t assume a lower-flow model has to feel like those weak hotel showers, though.

A low-flow showerhead might reduce how much water runs while you’re waiting, but it doesn’t address why the hot water takes so long to arrive. So it could help with the amount going down the drain, while leaving the long wait itself unchanged - two separate frustrations to weigh.

If someone had to choose a first step, would you prioritize reducing the water that runs during the wait, or finding a way to shorten the wait itself? I can see the first being a simpler water-saving choice, while the second might matter more to someone mainly frustrated by the delay.

If the long wait is the part that bothers someone most every morning, I’d prioritize shortening it, even if that takes more investigation than changing a showerhead. If the main goal is an easy, low-commitment water saving, reducing the flow during the wait seems like the better first move.

I’d put replacing the toilet first if it’s genuinely using a lot of water every flush and replacement is already manageable; that could reduce use throughout the day, not just during one shower. But if the upfront cost is a stretch, I’d try the showerhead first: it’s easier to assess comfort and back out if the spray disappoints. The toilet’s repeated savings would matter more to me only if they justify that larger commitment.

I’d be cautious about making greywater the first project. Since it sounds like a bigger cost and commitment than changing a fixture, I’d try a manageable upgrade first and see whether it addresses the main frustration before taking on a more involved system. The extra complexity might be worthwhile for some homes, but I’d want a clearer reason than the possibility of savings alone.

Before choosing an upgrade, it might help to estimate how much water is actually going down the drain during that wait. A simple timed collection from the shower while the water heats would give a rough sense of the volume, so the decision can reflect the waiting-time waste as well as comfort and cost.

That rough volume is more useful when paired with how often the wait happens: a small amount repeated every morning may still feel worth addressing, while an occasional wait might not justify a bigger project. I’d use the estimate to compare the scale of the waste with a showerhead’s cost and comfort, not treat it as a guarantee of bill savings.

The same kind of comparison could include the toilet: someone might consider how often it’s used and how much water each flush uses, then weigh that against the shower’s repeated warm-up waste. I wouldn’t assume either change wins without those details; the point is to compare likely everyday use with each upgrade’s cost, rather than choose on the fixture’s age alone.

For example, if a hypothetical household measures a modest amount during the warm-up but waits every day, they could judge whether a comfortable low-flow showerhead seems worth a small first try - especially if the spray remains pleasant. If the wait happens only occasionally, the estimate might point toward leaving the larger project for later rather than treating the measured volume alone as a reason to spend more.

Beyond a possible lower bill, what would make greywater worth investigating for a household: reducing overall freshwater use, having a use for water that would otherwise go down the drain, or some other goal? Knowing which benefit matters most could change whether the added complexity feels justified.

For a budget-conscious household, I’d want greywater to have a clear reuse purpose or make a meaningful dent in freshwater use - not just a hoped-for bill reduction. If the main appeal is saving money, I’d compare the upfront and ongoing complexity with simpler fixture changes first; if conserving water itself is a priority, that could make the added effort worthwhile even without a quick payback.

Imagine one household has a regular, suitable use for the recovered water, so a greywater system directly supports a conservation goal they care about; the added work could feel worthwhile even without quick bill savings. A household with no clear reuse opportunity might reasonably stick with simpler fixture changes instead. That’s why I’d weigh the usefulness of the water, not just the system’s theoretical savings.

When judging a low-flow showerhead, what matters most to you: broad spray coverage, or a forceful feel? Someone might find one comfortable and the other disappointing, so that preference could shape whether it feels like a worthwhile first try.

I’d lean toward even coverage over a forceful feel: a strong stream in one spot wouldn’t make up for the rest of the shower feeling unsatisfying. But if a gentler, broader spray still feels comfortable, that seems like a better trade than chasing pressure for its own sake.