do you pay attention to water-saving rules when fixing stuff at home?

Noticed something similar when I switched mine out:

- Water savings were noticeable, bills definitely dropped a bit.
- But yeah, hot water took longer to show up - pretty sure it's related to flow rate.
- Ended up insulating some pipes, seemed to help a little... might wanna check that out?

Insulating pipes can help a bit, but honestly, did you check the distance from your heater to the faucet? Sometimes the delay isn't just about flow rate - it's more about how far the hot water has to travel. I've seen setups where people installed a small point-of-use heater under the sink instead. Might sound like overkill, but it can actually save water and frustration in the long run... ever considered something like that?

"I've seen setups where people installed a small point-of-use heater under the sink instead. Might sound like overkill, but it can actually save water and frustration in the long run..."

That's actually a pretty solid suggestion. I've installed a few of those point-of-use heaters for clients, especially in older homes where the plumbing layout is less than ideal. Usually, the feedback is positive - less waiting around for hot water and definitely less wasted water down the drain.

But one thing to consider is the upfront cost and the space under your sink. Some cabinets are already cramped with garbage disposals, water filters, and cleaning supplies. Adding a heater might mean rearranging or even losing some storage space. Also, depending on your electrical setup, you might need to run a dedicated circuit, which can bump up the installation cost quite a bit.

Another thing I've noticed is that some people underestimate the maintenance. These small heaters aren't exactly "set it and forget it." You still need to periodically flush them out or check for leaks, just like your main water heater. It's not a huge hassle, but something to keep in mind if you're looking for a low-maintenance solution.

Have you looked into recirculation pumps at all? They're another way to tackle the delay issue without needing extra heaters everywhere. They circulate hot water through your pipes periodically, so it's always close to the faucet when you turn it on. Of course, they have their own pros and cons - like increased energy use - but they can be pretty effective if installed right.

Curious if anyone here has experience with recirculation pumps versus point-of-use heaters...

Honestly, recirc pumps sound good in theory, but I've found they can waste energy if you're not careful about timers and insulation. I ended up just insulating my pipes better - cheaper, easier, and still saves water. Worth considering before diving into more complicated setups...

"I ended up just insulating my pipes better - cheaper, easier, and still saves water."

Fair point about insulation being simpler, but doesn't pipe insulation mainly help with heat retention rather than directly saving water? Curious if you've measured actual water savings compared to a recirc setup...

Insulation definitely helps keep the water hotter longer, but I'm not sure it directly saves water. You still gotta run the tap a bit to clear out the cold stuff sitting in the pipes... Recirc setups seem more effective if water saving's your main goal.

- Insulation mainly tackles heat loss, not water waste directly - you're right there.
- Recirc systems are definitely more effective for water saving, especially if you install a timer or motion sensor to limit pump runtime.
- Another simple trick: smaller diameter pipes or shorter pipe runs can significantly cut down the wait time for hot water.
- Also, low-flow fixtures help reduce overall water usage without sacrificing comfort.
- Combining these methods usually gives the best results...depends on your home's layout and budget though.

"Another simple trick: smaller diameter pipes or shorter pipe runs can significantly cut down the wait time for hot water."

Good point about pipe sizing...but isn't downsizing pipes tricky sometimes? I've seen pressure issues pop up if you go too small. Curious if anyone's had trouble balancing that. Also, recirc systems sound great, but how much extra maintenance do they usually need? I'm all for saving water, but not if it means babysitting another piece of equipment every weekend...

Downsizing pipes can definitely get tricky - I've seen folks go too small and end up with weak showers or faucets barely trickling. Recirc systems aren't usually high-maintenance, but they do need occasional checks. Has anyone had issues with pump reliability over time?

"Recirc systems aren't usually high-maintenance, but they do need occasional checks."

Totally agree with this. I've seen a few pumps fail prematurely, usually because homeowners forget about them until something goes wrong. They're pretty reliable overall, but regular checks can save headaches later. Also, downsizing pipes is tempting for water-saving, but I've noticed it often backfires - especially in older homes where pressure's already borderline. Better to stick with recommended sizes and use low-flow fixtures instead... way less hassle in the long run.

Yeah, regular checks definitely help. I remember one time I got called out to a house where the recirc pump had been making weird noises for weeks, but the homeowner just shrugged it off as "normal plumbing sounds." By the time I got there, the pump was toast and had leaked all over the basement floor. Not fun.

About downsizing pipes - I get why people try it, but I've seen it cause more trouble than it's worth. Had a client who downsized their pipes thinking they'd save water, but ended up with showers that barely trickled and faucets that took forever to fill a pot. They ended up paying twice - once to downsize and again to put everything back to normal. Low-flow fixtures are definitely the smarter way to go if you're serious about saving water without sacrificing comfort.

I get your point about downsizing pipes, but isn't it more about how it's done rather than the idea itself? I've had a couple properties where we downsized certain lines strategically - like just the bathroom sinks - and honestly, no one even noticed. Maybe the issue is when people go overboard and downsize everything without thinking it through. Low-flow fixtures are great, sure, but sometimes a targeted pipe adjustment can work fine if you're careful about it. Have you ever tried partial downsizing instead of going all-in?

I see where you're coming from, but honestly I've found downsizing pipes more hassle than it's worth. Tried it once in a guest bathroom sink - pressure was noticeably weaker, guests mentioned it felt off. Low-flow fixtures seem simpler and less risky overall...

I get your point about downsizing pipes, but honestly, I've done it a few times without much trouble. The key is not going too small - just one step down usually works fine. Did it in my kitchen sink last year and haven't noticed any real pressure drop. Guests never mentioned anything either. Low-flow fixtures are solid, sure, but sometimes tweaking pipe size can be cheaper and just as effective if you're careful about it...

Before we go further, are we talking about the water-supply line or the drain? The pressure and faucet-flow examples above sound like supply piping. Drain slope and venting are a separate design question; they won't make an undersized supply line work properly.

The supply line is the relevant one in those faucet-flow examples. Its size needs to suit the available pressure, pipe run and fixture demand; going down one nominal size isn't a general water-saving rule. A suitable water-efficient faucet or aerator is a more direct way to reduce flow. If the remodel also changes drainage, size and vent that system separately under the applicable plumbing rules.

That distinction helps. For the bathroom remodel I'm planning, I'll separate the supply-line question from any drain changes rather than assuming extra venting solves both. What information would a plumber need to check the proposed pipe sizes before the walls are closed up?

A sketch showing which pipes are supply, drain and vent, their sizes, the fixtures served and the proposed changes would be a useful starting point. Supply sizing also depends on pressure and the run to the fixtures. Drain and vent requirements need their own check against the local code. There isn't a blanket rule that downsizing means adding another vent near the sink.

Checking the proposed layout before closing the walls makes sense. Keep the supply and drainage checks separate, and have the actual pipe sizes and vent arrangement assessed rather than assuming an extra vent makes a smaller pipe acceptable. Small adjustments early on always beat tearing stuff out later...been there myself, haha.

"Small adjustments early on always beat tearing stuff out later...been there myself, haha."

Yeah, can't argue with that. I've learned the hard way too many times - thinking I knew better than the code book or ignoring water-saving fixtures to save a few bucks upfront. Had a rental once where I skimped on low-flow faucets and toilets because I figured tenants wouldn't notice. Boy, did they notice when their water bills shot up! Lesson learned: saving water usually saves money in the long run, even if it seems trivial at first.