Making sure your home’s pipes are up to code - how I do it

A borescope can help with a hidden-leak investigation once a suitable, safe access route has been established. Don't make a blind probe hole or use an electrical-box opening just to find out what is there. Have concealed services and any electrical isolation assessed before intrusive work. A camera's limited view can add information, but it doesn't prove the whole pipe or wall is sound.

Borescope’s a smart move, honestly. I borrowed one from a neighbor when I thought I had a leak behind the shower wall - saved me from tearing into drywall for nothing. Not overthinking at all. Those tiny leaks can cost big if you miss 'em. I do wish they weren’t so pricey though...

- Borescopes are a game changer, no doubt. I’ve used mine for everything from checking for corrosion in copper lines to fishing out a lost wedding ring (don’t ask).
- Pricey? Yeah, they’re not cheap, but if you’re doing any kind of regular maintenance or troubleshooting, they pay for themselves. I’ve seen folks spend way more patching up unnecessary holes than what a decent scope costs.
- For anyone on the fence, you don’t need the top-of-the-line model. Even the basic ones with a phone hookup do the trick for most home jobs. Just make sure the camera head is small enough for your pipes - learned that the hard way when mine got stuck in a 1/2" line.
- Tiny leaks are sneaky. I’ve seen pinhole leaks in PEX that looked harmless but ended up causing mold behind the wall. If you catch them early, you’re saving yourself a world of headache (and cash).
- If you’re worried about cost, check if your local tool library or hardware store rents them out. Some places even have community tool shares - beats dropping $100+ for something you’ll use twice a year.
- One thing I’d add: don’t just look for leaks. Check for code issues while you’re at it - unsupported runs, missing clamps, weird junctions. I’ve found more “creative” plumbing behind walls than I care to admit.
- And yeah, sometimes you just gotta trust your gut. If something sounds off or you smell that musty odor, it’s worth poking around with a scope before you start swinging a hammer.

Honestly, I wish I’d had one years ago. Would’ve saved me from a very memorable (and expensive) ceiling repair after a mystery drip turned out to be a leaky upstairs toilet flange. Live and learn...

Couldn’t agree more about borescopes being a game changer. I used to think they were just for pros, but after borrowing one from my uncle, I’m sold. The first time I used it, I found a cracked fitting behind the tub that would’ve been a nightmare to spot otherwise.

“Just make sure the camera head is small enough for your pipes - learned that the hard way when mine got stuck in a 1/2" line.”

Yeah, this is huge. I made the same mistake with a cheapo scope off Amazon. Got it wedged in a tight elbow and spent an hour fishing it out with a coat hanger. Not fun.

A couple things I’d add:

- Don’t forget to check vent lines too. People always focus on supply and drain, but I’ve seen some wild stuff in vent stacks - like random screws or even bird nests (don’t ask).
- If you’re looking for code issues, keep an eye out for double trapping under sinks. Still see that all the time, especially in older houses.
- For anyone worried about damaging the camera, wrap a bit of electrical tape around the head. It helps protect the lens and makes it easier to pull back if you hit a snag.

I do think sometimes people get a little paranoid about tiny leaks though. Not saying ignore them, but not every drip means you need to rip out drywall. Sometimes it’s just condensation or a loose fitting you can tighten up.

Tool libraries are underrated. My local one has saved me so much cash on stuff I only need once in a blue moon. Plus, you get to chat with folks who’ve probably run into the same weird plumbing problems.

Last thing - if you’re poking around and see anything that looks like old galvanized pipe, don’t wait. That stuff’s just waiting to fail. Learned that lesson after replacing half my aunt’s kitchen ceiling...

Anyway, totally agree: borescopes are worth it if you’re doing any kind of regular home maintenance. Just wish I’d started using one sooner.

“If you’re looking for code issues, keep an eye out for double trapping under sinks. Still see that all the time, especially in older houses.”

Double traps are sneaky. I spotted one in my own place last month - looked fine at first, but sure enough, there was a hidden S-trap tucked behind the vanity. Also, totally agree about vent lines. First time I ran a camera up ours, I found a LEGO head and a chunk of foam... no clue how either got there.

And yeah, old galvanized pipe is just bad news. The stuff flakes if you even look at it funny. I’d add: when you’re checking supply lines, bring a magnet - if it sticks, you’ve probably got steel or iron lurking in there somewhere. Learned that trick from my boss and it’s saved me more than once.

Yeah, the magnet trick is a lifesaver - used it when I bought my place and found way more steel pipe than I expected. Still not sure how to tell if the vent lines are really clear without fancy tools, though. I tried the old “listen for gurgling” method but it’s not always obvious. Also, those hidden S-traps are wild... I swear every time I open up a cabinet, there’s some weird plumbing surprise waiting for me. Anyone else notice how much patchwork you find in older homes? Makes me wonder what’s lurking behind the walls.

Yeah, those S-traps are a headache. I’ve pulled out more than a few and every time it’s a gamble what you’ll find. Patchwork plumbing is just part of the deal with older places, I guess. Honestly, I wouldn’t trust the gurgling test either - sometimes things sound fine but there’s still a blockage somewhere. You’re not alone in wondering what’s hiding behind the walls... half the time I’m afraid to look.

- Not sure I’d write off the gurgling test completely. It’s caught a few hidden vent issues for me before, especially in spots where the old owner got “creative” with drain lines.
- I do agree, though, you can’t just trust your ears. I usually snake the line if I’m suspicious, even if there’s no obvious sign of a clog.
- Sometimes I’ll run a camera down if I really want to see what’s going on - saved me from tearing out a wall once when it turned out to be just a wad of hair at the trap.
- Patchwork plumbing is almost a rite of passage with these old houses... but sometimes those weird fixes actually hold up better than expected.

I’ve definitely seen some “creative” venting in old houses - sometimes it’s like a game of plumbing Jenga. I’m with you on the camera; nothing like seeing what’s actually lurking down there before you start demo. But I gotta ask, has anyone ever found a patchwork fix that actually made things worse? I once found a soda bottle used as a coupler... let’s just say it didn’t age well.

Had a job once where someone used duct tape and a Pringles can as a drain extension. Looked like it held for a while, but the smell was... something else. Honestly, sometimes these “fixes” are more work to undo than just replacing the whole run.

That Pringles can trick is wild, but honestly, I’ve seen worse. Sometimes people get creative with whatever’s on hand - coffee cans, soda bottles, even old garden hose. I get the urge to patch things up quick, but you’re right, undoing those “fixes” can be a nightmare. Ever try peeling duct tape off PVC after it’s been wet for months? It’s like wrestling a sticky octopus.

I always wonder, do folks realize how much those smells are actually warning signs? If you’re getting sewer gas leaking out, that’s not just unpleasant - it’s a health risk. I’m curious, when you run into these DIY jobs, do you usually find bigger issues hiding behind them? Sometimes I think the shortcut repairs are just the tip of the iceberg.

It makes me question whether it’s better to educate homeowners about what’s code and what isn’t, or just expect to keep seeing these “innovations.” Maybe a bit of both...

I’ve lost count of how many times I’ve pulled apart a “temporary” fix and found a whole mess lurking underneath - mold, rot, sometimes even critters making themselves at home. Folks get creative, but those shortcuts usually mean there’s a bigger headache waiting. I get wanting to save a buck, but sometimes it ends up costing way more. Ever had to explain to someone that their “fix” actually made things worse? That’s always an awkward conversation... Do you think people just don’t trust pros, or is it more about not realizing how bad it can get?

- Honestly, I think it’s a mix of both. Some folks just don’t realize how fast water damage can spiral, and others figure “how hard can it be?” until they’re knee-deep in a mess.
- I tried to patch a leaky pipe with duct tape once (rookie move). Ended up with a soggy cabinet and a lesson learned the hard way.
- It’s awkward telling someone their “fix” is actually a future disaster, but sometimes you gotta rip off the Band-Aid - literally and figuratively.
- Saving money’s great, but not when it means black mold or a surprise family of mice.

I get where you’re coming from, but sometimes I wonder if we scare people off from doing any repairs themselves. I mean, not everyone’s gonna call in a pro for every drip or rattle. There’s a middle ground, right? Like, teaching folks the basics - how to shut off the water, spot a real emergency, that kind of thing. Sure, duct tape isn’t the answer (learned that lesson in my first apartment too), but maybe a little DIY is better than ignoring the problem until it’s a full-blown disaster?

I totally get wanting to save a few bucks and handle the basics yourself - trust me, I’ve been there. But after a “quick fix” with plumber’s tape turned into a slow leak behind my bathroom wall (that I didn’t notice for weeks), I’m a lot more cautious now. I still do small stuff, like tightening fittings or replacing washers, but if I’m not 100% sure, I’d rather pay for a pro than risk water damage. It’s not just about money - it’s about peace of mind, too. Sometimes that “middle ground” is knowing when to stop and call someone who knows what they’re doing.

You nailed it with the “middle ground” idea. There’s a big difference between swapping out a leaky washer and, say, re-routing a drain line behind drywall. I’ve seen more than a few folks get in over their heads with a roll of plumber’s tape and a YouTube video... and then call me when their “quick fix” turns into a waterfall in the basement. Not that I mind the work, but I always feel for people when a small job snowballs.

Honestly, you’re ahead of the game just by knowing your limits. That’s half the battle. Some folks get stubborn and try to muscle through, but water doesn’t care about pride - it’ll find its way out, every time. I always say: if you’re not sure what’s behind that wall, maybe don’t poke around unless you’re ready for a surprise (and possibly a new floor).

I’m all for DIY where it makes sense. Tightening up a loose supply line or swapping out a faucet? Go for it. But once you’re talking about anything hidden or under pressure, it’s smart to pause and ask yourself, “Do I really want to play plumbing roulette today?” Sometimes the best tool is the phone.

One thing I tell my own friends: if you ever smell something weird or see water stains where there shouldn’t be any, don’t wait. That’s when things can get expensive fast. I’ve seen a $2 washer save someone hundreds, but I’ve also seen a $2 mistake cost thousands. It’s all about picking your battles.

Anyway, props for knowing when to step back. That peace of mind is worth way more than the money you might save doing it yourself - especially when you factor in the cost of stress (and maybe new drywall).

Couldn’t agree more about knowing your limits. I’ve done my share of “it’ll just take 10 minutes” fixes that turned into half-day projects and a lot of cursing. The temptation to poke around behind the wall is real, but man, once you open it up, there’s no going back. I learned that the hard way with a shower valve swap - thought I’d save a few bucks, ended up with a hole in the drywall and a call to a pro anyway.

I’m all for DIY, but water’s sneaky. It’ll find the tiniest gap and make you pay for it. I always tell friends: if you’re not 100% sure, don’t risk it. Sometimes the “cheap” fix costs more in the long run, especially if you have to redo floors or chase mold later.

Funny thing, I used to think plumber’s tape was magic. Turns out, it’s not a cure-all. Sometimes you just need the right parts and a little humility.

- 100% agree on water being sneaky. Had a tiny drip under my sink I thought was “no big deal” - ended up with a warped cabinet base in a month.
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“Funny thing, I used to think plumber’s tape was magic. Turns out, it’s not a cure-all.”

DIY is great, but sometimes the “just 10 minutes” jobs are the ones that haunt you. I’m learning to just call someone when I’m out of my depth.

That hits home. I used to think I could handle every little drip or rattle myself - until a “quick fix” on a shutoff valve turned into a full-blown leak at 11pm. Ended up with water in the crawlspace and a bill from the emergency plumber that still stings.

I’ve learned to check for even tiny signs of moisture under sinks and behind toilets, especially in older places. Water’s sneaky, like you said. It’ll find its way through the smallest crack and before you know it, you’re dealing with mold or warped floors.

One thing I’d add: don’t trust old repairs, even if they look fine. I once found duct tape wrapped around a pipe joint behind a wall - looked dry, but it was slowly seeping for who knows how long. Now I do regular walkthroughs and keep a moisture meter handy. It’s not paranoia if you’ve seen what water can do...

Yeah, water damage is one of those things that sneaks up on you. I’ve seen folks get lulled into a false sense of security because “it’s just a slow drip” or “the last guy patched it.” Like you mentioned, duct tape or even those rubber clamp fixes might hold for a bit, but they’re not meant to be permanent. It’s wild how many times I’ve opened up a wall and found some creative plumbing “solutions” from previous owners.

You brought up moisture meters - honestly, that’s one of the best tools anyone can have if they’re living in an older place. But I’d also say don’t overlook the basics: do you know where your main shutoff is? Can you actually turn it off without a wrench? You’d be surprised how many people can’t, and when you’re standing in two inches of water at midnight, that’s not when you want to be figuring it out.

One thing I always recommend is checking under sinks and behind toilets for any signs of corrosion around fittings. Even if there’s no visible leak, green or white crusty stuff on copper pipes usually means trouble is brewing. And if you see any kind of swelling in wood or baseboards nearby, that’s a red flag too.

I get that calling in a pro isn’t cheap, but sometimes it’s the difference between a hundred-dollar fix and thousands in repairs down the line. That said, there are some things handy folks can do safely - like replacing supply lines with braided stainless steel ones instead of the old plastic or rubber hoses. Those old hoses are notorious for bursting at the worst possible time.

Curious though - has anyone ever actually had insurance cover the full cost of water damage from something like this? In my experience, insurance companies love to find reasons not to pay out if they think it was “preventable.” Maybe I’m just cynical after seeing so many claims denied...

Anyway, regular walkthroughs and not trusting old repairs are solid advice. Water doesn’t care about your schedule or your wallet - it’ll find a way if you give it half a chance.