Homeowner of 20yo 2-story house. Saw frost in attic so I am trying to air seal the penetrations and keep house air and moisture from leaking. Found these gaps/voids for hot water tank exhaust and plumbing vents. Can these voids be covered up with sheet metal and/or wood, or do they serve a purpose? reddit.com/gallery/s6gkcy
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πŸ‘€︎ u/baboonassassin
πŸ“…︎ Jan 17 2022
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Kitchen employee in California here, would this be considered a health code violation? An air gap between the water supply inlet and the flood level rim of the plumbing fixture, equipment, or nonfood equipment shall be at least twice the diameter of the water supply inlet and may not be less than 1" v.redd.it/xbhnffrn0kd81
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πŸ‘€︎ u/SrLlemington
πŸ“…︎ Jan 24 2022
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Anyone knowledgeable with plumbing codes: Is there an air gap requirement for faucets? My RO faucet is leaking from the air gap and I’d like to bypass it.

None of my other faucets have one, and my RO faucet is spurting from the air gap. It’s not the drain, seems like high water pressure. Anyhow I’d like to bypass it instead of installing a pressure regulator only because it’s cheaper. If it’s against code I’ll get the regulator. Anyhow any help would be appreciated!!

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πŸ‘€︎ u/toothpastemouth
πŸ“…︎ May 09 2021
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Question regarding modifying the kitchen sink plumbing to accomodate for an under-the-counter Air Gap.

Currently, I've plumbed in a p-trap to sanitary tee (both 1.5") to our waste stack (2") under the kitchen sink. Above the sanitary tee on the waste stack is an AAV, which is 6" above the top of the trap weir.

https://imgur.com/a/5wBFh

I was running the dishwasher waste line to the garbage disposal with a high loop, but upon contacting the local authority, was told that we need to either have an above-counter Air Gap, or an under-counter Air Gap that discharges into a standpipe that's 15" tall above the trap weir.


I'm hoping that upon final inspection, the inspector won't be concerned with the high loop and shrug it off. In the event that it's a problem, I'm considering options to add a solution in-place without cutting the current implementation off at the primary stack and starting over.

Could I add a wye where the disposal connects which would run over to the edge of the cabinet, and then elbows up (hopefully 15"?)

I'm curious if this would be acceptable, as I'd really prefer not to plumb a second trap solely for the dishwasher (and redo everthing already in place.)


Or, perhaps I have other options?

Adding a check valve (or even two check valves in series) seems like a better solution than Air Gaps discharging into open stand pipes (which could hypothetically overflow in the event of a plug!)

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πŸ‘€︎ u/Shidell
πŸ“…︎ Jan 02 2018
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Air Gap for Water Softener Discharge
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πŸ‘€︎ u/biaxid3nt
πŸ“…︎ Jan 28 2022
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Had a water softener guy visit just to get the lay of the land in the house. He indicated that the softener isn’t being drained in a code compliant fashion and said I need a air gap fitting. reddit.com/gallery/qgigmz
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πŸ‘€︎ u/msss711
πŸ“…︎ Oct 26 2021
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Was this installed correctly? The dishwasher is coming in from the left with the grey tube. The air gap was placed outside, after the U pipe here. Air gap is constantly spitting out water and gunk from the dishwasher.
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πŸ‘€︎ u/Lithium98
πŸ“…︎ Nov 22 2021
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Are the two flat surfaces on a union supposed to sit completely flush? Theres a small gap there and i cant get this union to seal… using it on compressed air, had 50 psi as a test. Tightened the fuck out of it still leaking.
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πŸ‘€︎ u/Subject-Ad-789
πŸ“…︎ Jan 08 2022
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Please help with Reverse Osmosis system with Air Gap. Just replaced sink, faucet, and RO tap. System is gurgling 100% of the time from the air hole in the tap. System was drained before replacing tap and the tap was left open while it was filling up. Help me, obi plumbers. You're my only hope. reddit.com/gallery/sb57sg
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πŸ‘€︎ u/CjMcDonald85
πŸ“…︎ Jan 23 2022
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Dishwasher Air Gap on Single-Hole Sink

We are considering getting a sink that has only a single hole. My understanding is that the plumbing code in our area requires an air gap for dishwashers. Since the sink has only one hole, it isn't clear to us if we can use it in a way that complies with the code.

From reading online, I have seen these options.

  1. Drill another hole in the sink. (Based on what the manufacturer has stated, I believe this will void the sink's warranty.)
  2. Install the air gap underneath the sink. (I believe this does not comply with the plumbing code.)
  3. Use the punch-out in the sink to punch out a hole for the air gap (I don't think this sink has a punch-out).

So, at the moment, it looks like our options are either to void the warranty, settle for not complying with the code, or look for a new sink. Are there any other options?

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πŸ‘€︎ u/plafratt
πŸ“…︎ Sep 01 2021
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No air gap for the drain on our dish sink, manager is trying to get it fixed but corporate doesn't care. It's been like this for years. What should we do? v.redd.it/qfnh4me6zid81
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πŸ‘€︎ u/SrLlemington
πŸ“…︎ Jan 23 2022
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Air Gap for Reverse Osmosis (RO) in Basement

My reverse osmosis system (RO90) is in the basement and already has a drain to a waste pipe. I'm redoing my kitchen and will be hooking my RO water (plastic tube) to a new stainless steel faucet that has both instant hot and cold water (this will be next to my main faucet which does not have RO). The faucet maker sells an air gap but I'm confused if I need that for this particular installation because I'm draining to waste in the basement and not under the sink. Appreciate the help.

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πŸ‘€︎ u/awarren82
πŸ“…︎ Jan 16 2022
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I have a water softener that required an airgap to prevent backflow from the septic into the softener. so the pipe was cut and p trap added with the air gap up top that the softener drain line flows into. Air admittance was added to prevent trap from getting siphoned. See inside post for rest of ... reddit.com/gallery/rgbeif
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πŸ‘€︎ u/BobbytheBusDriver
πŸ“…︎ Dec 14 2021
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Putting together Alex/Karlby desk, are these air gaps normal?
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πŸ‘€︎ u/jtinch
πŸ“…︎ Jan 26 2022
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How can I consolidate all the ink in this pen at the bottom of the tube? There’s plenty of ink, but many air gaps.
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πŸ‘€︎ u/pixer12
πŸ“…︎ Nov 16 2021
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Rearranging the under stair storage and plugging air gaps. Can I have this moved to be more flush to the wall? It’s the main to the house. I live in the Midwest so it gets cold, but not below freezing for extend periods. imgur.com/a/4bKpWYz/
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πŸ‘€︎ u/Kukri187
πŸ“…︎ Dec 03 2021
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I had no idea the Air Force had starfighters! We need to close the starfighter gap before China builds more of their own.
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πŸ‘€︎ u/James2912
πŸ“…︎ Dec 12 2021
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How big of an impact would this duct gap cause? First duct past the air handler
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πŸ‘€︎ u/shmobodia
πŸ“…︎ Jan 10 2022
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Jumping the air gap: 15 years of nation‑state effort welivesecurity.com/2021/1…
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πŸ‘€︎ u/0xdea
πŸ“…︎ Dec 03 2021
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Air gap tips? Bought a smaller snake to try to clear it up, it still does this after, snake it definitely hitting something, comes back up dirty. v.redd.it/13b8883jesl71
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πŸ‘€︎ u/midnightmk4
πŸ“…︎ Sep 06 2021
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Gap at bottom of baseboard - how to air seal?

My house is a 1950 cape code with brick wall construction. Not brick facade, structural brick -- 2 wythes thick (see: 2nd from right on this page). The interior walls are drywall affixed to shallow, 1-2" deep wood studs. Insulation in these cavities is minimal to non-existent from what I can tell.

On the first floor, on the outer walls, there are areas where either the quarter round is separated from the baseboard or, in the case of our dining room, missing entirely (we pulled up old carpeting and haven't gotten around to refinishing the wood floor and adding quarter round. (See pics here).

The gap between the bottom of the floorboard and the wood floor noticeably allows air -- I think from the cavity between the brick and the drywall? -- to enter rooms. This is most noticeable on cold days in winter.

My question is: can I air seal this gap with either some closed cell spray foam or caulk? I plan to remove and re-install the quarter round that has gaps. I'm leaning towards caulk, since it seems more controllable and less messy -- especially since the gap is inconsistent in places. What type of caulk would be best for this?

Thanks.

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πŸ‘€︎ u/luftwaff
πŸ“…︎ Jan 01 2022
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Is this gap normal? My mechanic shop tells me it’s fine but I keep having to fill up all 4 tires with air since I got them reddit.com/gallery/qztaw2
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πŸ‘€︎ u/spooky_icequeen
πŸ“…︎ Nov 22 2021
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Disgruntled renter, here. New dishwasher installed by apt maintenance. Would you consider this a high loop? No air gap. Dishes do not smell or look clean at cycle end. reddit.com/gallery/ovi75o
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πŸ‘€︎ u/Sarelbar
πŸ“…︎ Aug 01 2021
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Rant: Just blew up the kitchen plumbing

Last night I had a rice mishap where a bunch of uncooked rice ended up going down the drain... and yes, it got clogged. sigh

Got the plunger but no avail. So today I got one of those cans of compressed air... and bam... blew out all the plumbing below the kitchen sink.

Water and rice everywhere. Plus, I still think the rest of the pipes may have more rice still. Hard to tell.

Plumber can't come until Saturday, which is probably good as I'll need a bit of time to clean up this mess.

Just ranting :(

Update: I reattached the trap, after cleaning it. Needs to be replaced, but I can run water in one of the two sinks (the other needs the pipe replaced). I'm able to run water without it backing up, so I'm pretty sure the rest of the pipes are clean.

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πŸ‘€︎ u/KaneHau
πŸ“…︎ Oct 21 2021
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Vertuo Green Then Double-Red, Air Gap?

Picked up a Vertuo Plus from FaceBook marketplace (probably a bad sign for things to come).

The original owner said it hadn’t been used but after checking it out, it looks like it’s had some use.

Tried kicking off a cleaning cycle but can’t get the water to run.

Wasted a couple of capsules, it makes the whirring sound then double-flashes red and then goes back to green.

Tried the cleaning cycle and it will flash orange, makes some whirring noises then double red flash before back to flashing orange.

No water has come through, can’t hear the pump sucking.

Suspect it’s an air gap that might be causing the issue but not 100% sure.

Tried the trick of rapidly adding and removing the water tank repeatedly and also tried the ziplock bag trick to put pressure and try and fix the air gap but nothing has worked.

Does this sound like an air gap issue? How can I go about fixing it?

Or have I got a dud unit?

Not sure how the warranty process will work

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πŸ‘€︎ u/pandasdokungfu
πŸ“…︎ Jan 23 2022
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Having these annoying problems with β€˜air gaps’ there for a wedding and I need to do 60+ for everyone asap how do I fix it? I’ve tried adding extra perimeters and making the model larger non have worked
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πŸ‘€︎ u/redisgoodboy
πŸ“…︎ Jan 14 2022
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What/ is there a purpose of this Large air gap on both primary and secondary winding of welding transformer?
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πŸ‘€︎ u/lil_smd_19
πŸ“…︎ Jan 16 2022
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M1 macbook air hinge gap

I recently dropped my macbook air onto tile and everything appears to be fine but I've noticed the right hinge has a gap between the aluminum body and the left one does not. Is this a normal defect or was it caused by the fall? Is it something I should even worry about?

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πŸ‘€︎ u/Dry-Cost-945
πŸ“…︎ Jan 21 2022
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This abomination to Plumbing πŸ€¦β€β™‚οΈ reddit.com/gallery/pzt62z
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πŸ‘€︎ u/PlumbersCrack1229
πŸ“…︎ Oct 02 2021
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Pls advice!!! Cold air coming through the gaps between baseboard and floor

My bedroom floor (hardwood flooring) is very cold near the exterior walls. My basement is unfinished. Initially I was feeling cold wind through the gaps between baseboard and hardwood floor, I have caulked the gaps which somehow stopped the draft but floors are very cold. I thought unsealed rim joist may be the issue…so I have applied foam spray around rim joist which stopped the cold draft through rim joist but floors are still cold and don’t know from somewhere cool air is penetrating the room and making it cold.

Hardwood floor is in average condition with some squeaks and gaps.Previously it has carpet on top of it.

Windows are in good shape and have proper weatherstripping. Attic insulation is also good.

House is built in 1974

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πŸ‘€︎ u/Extreme-Chip4026
πŸ“…︎ Jan 15 2022
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Floor air gap near wall suggestions

I have an air gap in the wood floor near the door, can feel the draft. [Pic](Air gap https://imgur.com/gallery/YHiweGN)

What is an easy short term fix to fill for winter, and is there a recommendation for a different long term fix?

Edit: Gap is next to door on the frame side, not underneath the swing path

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πŸ‘€︎ u/4IIIphoto
πŸ“…︎ Jan 16 2022
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Solved the water coming out of air gap mystery- I think the drain line is connected to the air gap, not the drain?
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πŸ‘€︎ u/iwantapenguin
πŸ“…︎ Jan 30 2021
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I have learned that hot tents tend to not have an attached flooring, so won't the cold air seep in during the night? Or is the stove warm enough to heat up whatever air that is coming between the gap of the tent flap and ground?
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πŸ‘€︎ u/Jiolino
πŸ“…︎ Dec 30 2021
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Is my airfryer meant to air tight or should it have a small gap to release some air

Hi I have a Teflon air fry original and I'm just abit worried as it got it today from a friend and want to make sure its safe to use

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πŸ‘€︎ u/Curious-Tour
πŸ“…︎ Dec 06 2021
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Hole Punch Cloud, jets can punch holes in clouds and make small amounts of rain and snow. As a plane flies through mid-level clouds, it forces air to expand rapidly and cool. The gap expands to create spectacular holes in the clouds.
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πŸ‘€︎ u/Fluid-Daydreamer
πŸ“…︎ Nov 20 2021
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