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Rusty water heater woes—repair or replace?

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hiking300
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(@hiking300)
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Figured it’d be more stuff to break, but honestly, it’s been less hassle than I expected.

Had the same worry when I swapped out a couple old tanks in my rentals for hybrids with leak sensors. Thought I’d be dealing with constant error codes or app nonsense, but honestly? The leak detection saved me a huge mess last year—caught a slow drip before it trashed the floor. Still not sure about all the “smart” features, but that one paid for itself.


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(@traveler86)
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I get the hesitation with all the new tech—sometimes it feels like more things to worry about. But I’ve got a pretty old heater now, and honestly, the idea of a leak sensor sounds way less stressful than coming home to a flooded basement. Did you have to do anything special to set it up, or was it just plug-and-play? I’m not super into all the app stuff either, but if it actually prevents damage, maybe it’s worth the upgrade.


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sophiewhite402
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- Had a similar debate with myself last year when my old tank started looking sketchy.
- Ended up grabbing a basic leak sensor—nothing fancy, just the kind that screams if it gets wet.
- Setup was literally: pop in batteries, stick it on the floor near the heater, done. No app, no wifi, just peace of mind.
- I get the appeal of smart sensors, but honestly, for me, simpler felt better. Less to break or mess with.
- That said, if you’re already replacing the heater and they offer a bundled smart sensor install, might be worth considering? Some of those can even shut off your water automatically if there’s a leak... which is wild but kinda cool.
- For now though, my $15 “dumb” sensor has saved me once already—caught a slow drip before it turned into a disaster.
- Not sure I’d bother with all the app stuff unless you’re away from home a lot or really want notifications on your phone. Sometimes low-tech is just less hassle.


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(@raycoder)
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You make a good point about the simplicity of those basic leak sensors—sometimes less is more, especially if you’re not keen on adding another gadget to the wifi. I’ve seen both ends of the spectrum in people’s basements: some folks have a whole smart home setup that texts them if their sump pump hiccups, while others just want something that’ll scream if water hits the floor. Both approaches work, but it really depends on how much tech you want to manage.

Curious, though—when you caught that slow drip, did you end up figuring out what caused it? Was it a failing valve, or was the tank itself starting to go? I ask because sometimes a small leak is just a loose fitting, but other times it’s the first sign that the tank’s lining is shot and rust is eating through. I’ve seen tanks last 20 years with just minor repairs, but I’ve also seen them flood a basement overnight when ignored.

Also, for anyone else weighing the “repair or replace” question, how old is your current heater? If it’s over 10-12 years and you’re seeing rust or leaks, that’s usually when I start nudging folks toward replacement. The peace of mind alone can be worth it—especially if you’ve got finished floors or anything you’d hate to see ruined by a sudden failure.

On the sensor front, I do wonder if the smart shutoff valves are worth the extra cost for most people. They sound great in theory, but I’ve heard mixed reviews about reliability and false alarms. Anyone here actually had one of those systems save the day? Or is it mostly just another thing to troubleshoot when your wifi goes down?


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brewer57
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RUSTY WATER HEATER WOES—REPAIR OR REPLACE?

I’m right in the middle of this mess myself, so here’s what I’ve figured out so far. First, if you see rust or brown water, don’t ignore it. I tried to convince myself it was “just a little sediment” but, yeah, it turned out the tank was rusting from the inside. My heater’s about 13 years old, so I guess I shouldn’t be surprised.

Here’s how I tackled it:

1. Checked all the fittings and valves for leaks—found nothing obvious.
2. Ran hot water and looked for rust in the stream—yep, there it was.
3. Drained a few gallons from the bottom to see if it cleared up (spoiler: it didn’t).

At that point, I gave up on repairs and started shopping for a new one. I’d rather spend the money now than risk waking up to an indoor swimming pool.

About those smart shutoff valves... honestly, I’m not convinced. My WiFi’s sketchy at the best of times, and the idea of relying on it to save my basement just sounds like tempting fate. I stuck with a cheap, loud water alarm for now—at least I know it’ll scream at me whether or not the router’s having a meltdown.


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