I am finishing up renovating my pool and I changed the configuration of the barrier fence I previously had. I now use my house itself as the 4th side to keep the pool deck open (since our kids are grown). The county/state code indicates I must install door alarms on all doors that allow access to the pool (I have 7 due to big sliding doors opening at various points).

While I don't agree with being forced to install these alarms in MY house where no children live, I must do so to pass the inspection. I am a do-it-your-selfer and heavily into home automation. I have my existing home security system, motion and existing door/window open sensors integrated into my home automation system, so I wanted to use this same automation system to meet the pool alarm requirements. I want use a RaspberryPi or ESP8266 Wireless module to handle the override button presses next to each door. Ideally rather than a blaring alarm, I would like a notification sent to my phone or watch. I could setup a blaring alarm just to pass the inspection.

Has anybody had any luck getting their local government/county inspectors to budge on this archaic building code? (By archaic, I mean there are more modern ways to get your attention other than an obnoxious 85dB alarm -- like mobile phone, watch, etc)

I am trying to avoid purchasing seven $50 "official devices" for each door just to pass the inspection. If my DIY system meets the regulations, but is not a UL certified alarm device, will that pass inspection?

The specification I found is listed below:

The relevant parts are from http://www.floridahealth.gov/environmental-health/swimming-pools/_documents/cpsc-safety-barriers.pdf

All doors that allow access to a swimming pool should be equipped with an audible alarm that sounds when the door and/or screen are opened. Alarms should meet the requirements of UL 2017, General-Purpose Signaling Devices and Systems, Section 77, and have the following features:

  • The alarm sound should last for 30 seconds or more and start within 7 seconds after the door is opened.

  • The alarm should be loud: at least 85 dB (decibels), when measured 10 feet away from the alarm mechanism.

  • The alarm sound should be distinct from other sounds in the house, such as the telephone, doorbell, and smoke alarm.

  • The alarm should have an automatic reset feature to deactivate the alarm temporarily for up to 15 seconds, to allow adults to pass through house doors without setting off the alarm. The deactivation switch could be a touchpad (keypad), or a manual switch, and should be located at least 54 inches above the threshold and out of the reach of children.

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    Comments are not for extended discussion; this conversation has been moved to chat.
    – Michael Karas
    Commented Nov 30, 2018 at 4:17
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    Note that deaths from swimming pools outnumber deaths from accidental discharge of firearms by roughly 4 to 1, so something that can make people aware when a pool is being accessed seems like a good idea.
    – Strawberry
    Commented Nov 30, 2018 at 14:45
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    Is there anything that says you must have 7 alarms? Couldn't all 7 doors trigger the same alarm? Since the point is to show that people are on the way to the pool, it doesn't really matter from which door they went, does it?
    – Moacir
    Commented Nov 30, 2018 at 17:40
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    It probably makes no difference whether it is 1 or 7. But from a practical standpoint, unless you are using access cards like a secure commercial building (which would be (a) overkill for a home, (b) would actually not be a good idea for any exit doors - normally for entrance), it is going to be a lot cheaper to make each alarm separate - the extra cost of wiring them together is likely to be a lot more than the cost of extra alarm bells. Commented Nov 30, 2018 at 17:56
  • Would it be cheaper/easier to add a fourth side to your pool fencing instead ? Fences are static and not as prone to failing like a technological solution.
    – Criggie
    Commented Dec 1, 2018 at 10:06

7 Answers 7


Not the answer you are looking for, but:

Loud Alarms are What You Really NEED

Assuming that the premise is a sound one, that people need to be warned of unexpected/unauthorized entrance to the pool area, a loud alarm is the right answer, not an electronic notification. A few examples:

  • It is all too easy to ignore texts/notifications/etc. "If my boss/spouse/buddy texts me one more time about that project/trip/party, I'm gonna scream" followed by ignoring the next 30 minutes of little beeps by just swiping them away to look at "later". Kid wanders out...disaster.

  • A new cleaning crew comes in the day before your big pool party. One of them asks, "can I bring my 3 year old, I'll keep an eye on her, she's a really quiet kid" and you say "sure". You go out to pick up munchies. The cleaning person starts vacuuming in the living room. The kid wanders through the door (left closed but unlocked because the crew is cleaning "everywhere")...disaster.

  • You are out at the pool having fun. You hear a honk and go out front to greet the guests. He has the radio on in his car and you decide to listen to the last 2 minutes of the big game, radio blaring, watches/phones ignored (my day off, I'm ignoring texts), kid who was watching TV inside wanders out to the pool to find you...disaster.

You can argue whether any alarm is needed. But once an alarm is needed, an App won't substitute. Not when accident to disaster = 3 minutes or less in the water.

A number of people have pointed out that for a child even 3 minutes can easily cause major damage or even be fatal. I am not suggesting "up to 3 minutes and everything is going to be just fine" - quite the opposite, I am using that as a very short time period to indicate just how little time it takes - and therefore why an alarm on entering the pool area, hopefully a minute before falling in the pool is vitally important.

For those suggesting "put up the stupid alarms and then unplug/remove battery/etc. after the inspector leaves", please don't do that!.

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    Comments are not for extended discussion; this conversation has been moved to chat.
    – Michael Karas
    Commented Nov 30, 2018 at 1:38

Ask your insurer and defense lawyer

Lawyering on whether this rule is really a mandate is probably a waste of time. It's a "best practice" and one easily implemented. Which will create civil and criminal liability for you if you don't implement it.

"I'm willing to lump the risk", does your insurance company also agree to lump the risk? I bet they don't. "I don't need no steenkin' insurance", how does your mortgage lender feel about that? You live in a connected society, and you don't get to enjoy the rather enormous benefits whilst shirking the responsibilities. Your pool is an attractive nuisance and Code has laid out a way to deal with that. Ignore it at your peril.

Life Safety systems need to be safety rated

Speaking of connected society, you propose to use Arduinos, Wifi routers and smart phones to implement a life safety system. Have you checked with Arduino, Cisco, Google/Samsung, T-Mobile, Comcast and others whose licensed products Will be involved?

You can bet they have a very direct and very loud opinion about using their products in life safety systems. Fair chance it is already in their Terms of Service. So involving phones, Arduino or the Internet in the baseline safety solution is out of the question. Again, blatant disregard of those companies' ToS and warnings will only further prejudice a jury in a manslaughter trial, as well as being potentially sued by those companies.

Auxiliary/supervisory is fine

They can, however, serve an auxiliary purpose, example being the Ring doorbell type features, where it notifies you of approachers and lets you see them.

Unrated home-automation gadgets can also be used for "beyond requirements" purposes. For instance if you have an inner gate which must be protected to Code, and an outer gate which does not, you can do anything you please to defend the outer gate.

Doing safety-rated isn't that hard

Safety rated systems hardly need to be ugly. Certainly many suppliers will cheerfully take your money for a no-brain, ugly bolt-on fits-all solution that satisfies statute. But that is not your only option. As long as you do the electrical work to standards, you can certainly apply your industry to a bespoke wiring/installation solution which is concealed and attractive. This is a DIY forum, after all. It certainly won't be any harder than the bespoke home automation solution you are proposing, it will just use different crafts.

Generally safety-rated systems just use hardwiring, Underwriter's Laboratories (UL) listed devices instead of Chinese Excrement (CE) junk off Amazon, proper installation methods, and other gold-standard practices. Sticking to gold standard is a liability shield.

If you're so smart, why is Code in your way?

The last thought I have is the number of people we get in here who fancy themselves "too smart for Code", and yet, for some reason Code is an impediment to them.

I cannot point to one single project I couldn't do because of Code. It's nothing more than a speedbump to me.

Just do good work that complies. Nothing more to it.


Based on your link, I'm assuming you live in Florida. The relevant statutes are 515.29 Residential swimming pool barrier requirements and 515.27 Residential swimming pool safety feature options; penalties.

515.27 list a few options to secure a pool: "In order to pass final inspection and receive a certificate of completion, a residential swimming pool must meet at least one of the following requirements relating to pool safety features:"

There are five options:

  1. A barrier as described in 515.29, but 515.29 (4) precludes this option for you.
  2. The pool must be equipped with an approved safety pool cover
  3. An 85dB alarms on each door and window leading to the pool, like you mention in the question
  4. All doors providing direct access to the pool must be self-closing with a release mechanism placed no lower than 54 inches above the floor
  5. A swimming pool alarm that sounds an alarm upon detection of an accidental or unauthorized entrance into the water. Such pool alarm must meet and be independently certified to ASTM Standard F2208, titled “Standard Safety Specification for Residential Pool Alarms,” which includes surface motion, pressure, sonar, laser, and infrared alarms.

It looks like 4 might be the option you are looking for, no alarms needed.

There are less options for self closing sliding doors than swinging doors, but there are some, like the "Door Genie" or "Slideback". If you can't get self closing doors, however, you'll need to get a pool cover or alarms to pass the inspection.

If you do end up going with alarms, the statue says nothing about approved alarms. The only requirement is "an exit alarm that has a minimum sound pressure rating of 85 dB at 10 feet". Your homebrew system should suffice if you can prove it's 85 dB at 10 feet.

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    It's a good point, but sliding doors are not generally self-closing, and may not have readjustable handles.
    – Sneftel
    Commented Nov 29, 2018 at 13:26
  • @Sneftel I've added links to some retrofits to make sliding doors self-closing.
    – Vaelus
    Commented Nov 29, 2018 at 17:33
  • It's bizarre that the Code thinks that self-closing doors remove the risk of children going through windows... Commented Nov 29, 2018 at 18:49
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    @DavidRicherby It does seem to be an oversight in the statute, but the alarms on windows are probably unnecessary (or at least ineffective) anyway. Window locks are typically greater than 54 inches above the floor, and if the window was already open and a child could climb through, then an alarm wouldn't go off anyway.
    – Vaelus
    Commented Nov 29, 2018 at 20:43
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    @DavidRicherby The point is that the doors are self-closing and have a latch significantly higher than normal, in order to keep infants and toddlers away from the pool until they are old enough to operate a regular door; presumably by the time a child is big enough to do so, they are old enough to understand simple warnings about pool use. Agreed though, it sounds like an incomplete or inconsistent set of regulations.
    – brichins
    Commented Nov 29, 2018 at 22:30

I doubt you'll get any latitude on the code as written. The code is written very clearly. It isn't within the code enforcement official's discretion to set it aside upon request. If there is ever any accident that may have been prevented by alarms per the code, they'd be responsible ethically and legally.

I personally think relying on app notifications generated by a home brewed Raspberry Pi based system for anything life safety related is a terrible idea, it just isn't a robust and reliable solution. The Pi is fine for hobby and educational purposes, but not critical applications.

I'd recommend reading the actual code carefully and citing the code when discussing the matter with inspectors. Most inspectors are receptive to reasonable, researched discussion.

  • If by "code" you are referring to "cspc-safety-barriers", the I agree that the document is very clearly written. What is not clear to me is that it is "code", that is, an enforceable regulation. Commented Nov 28, 2018 at 19:49
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    Gotcha on the safety of home brewed Raspberry Pi. Now I am curious if I want to use the home automation system (OpenHab) and existing security alarm contacts to mimic what the code states including the alarm (only using the Rasberry Pi as the override button transmitter to the OpenHab system), will that fly with the inspectors? My initial anonymous discussions with the inspectors is they really are just looking for the specific $50 off the shelf devices.
    – JFar
    Commented Nov 28, 2018 at 20:20
  • No inspectors are NOT liable ! I have seen and testified to work that was done to code many years after the fact and the inspection being signed off means nothing in a court of law.
    – Ed Beal
    Commented Nov 28, 2018 at 21:39
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    @A.I.Breveleri- There is a Florida Residential Pool Safety Act with requirements that limit small children's access to pools, the alarms being one of the ways to satisfy the requirement. Commented Nov 28, 2018 at 21:47
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    @EdBeal A splash sensor is a good idea but (a) you lose a minute of precious time because it only activates when someone falls in, not when they are walking towards the pool; (b) if you turned it off because you started using the pool but then got out and walked away (the 3rd example in my answer), it wouldn't do any good - almost nobody is going to turn the splash sensor back on when they're "just going out front for a minute". Commented Nov 29, 2018 at 4:57

Have you read the relevant county/state code? Have you actually spoken to the inspector about you doors and the required alarms?

The document you cite, "cspc-safety-barriers", is a citizen advisory and not a regulation of any kind. Is "cspc-safety-barriers" cited in the relevant county/state code? Did your inspector tell you to follow that advisory?

Make sure you understand what you are being told to do before you decide on the best way to do it.


Would these alarms be enough?

Adhesive Alarms

Not sure about shipping to you place, but the 12-pack is listed as $30. The ad mention it is 100db, and have a manual switch. Just place them over the 54 inches and it is done.

It's cheap, it's easy, and you still got like 5 more to use on different places if you like them


Since you need a few. You could just pick up some window alarms from walmart - window alarms. I don't know how official they are. They are 120 db and the link shows a pack of 4 for less than $20. Then once the inspection is over and everything has settled down, remove them.

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    "Then once the inspection is over and everything has settled down, remove them." NO!!! Commented Nov 30, 2018 at 4:23
  • 8
    This is bad advice. Don't follow this advice. Commented Nov 30, 2018 at 4:41
  • And incomplete - you should try to return the alarms as defective and get your money back ;) Commented Dec 1, 2018 at 21:47

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