Hey everyone, if you’ve ever spent time around a public pool, a backyard pool where people are constantly coming and going, or even a commercial aquatics facility, you’ve probably had that moment—you step onto the deck, take a deep breath, and… wait, is that strong chlorine smell? Not the fresh, slightly chemical one that keeps the water safe, but that harsh, almost sour odor that lingers in your hair, on your swim trunks, and even on the pool chairs? I’ve been in the pool grating game for over a decade now, and that’s one of the most common questions I get from both homeowners and facility managers alike: Are there actually pool gratings that help reduce that weird, annoying odor? Pool Grating
Let me cut to the chase first: No, pool gratings don’t magically eliminate chlorine from the water. But the good news is, yeah—there are options out there that do a hell of a lot to cut down that lingering, unpleasant deck odor. And as someone who’s tested nearly every kind of grating on the market, worked with facility managers who’ve dealt with client complaints about the smell, and even helped a few backyard folks swap out their old grates to fix this exact issue, I can break this down in plain terms, no fancy jargon.
First, let’s get why that odor happens in the first place, because if you don’t know that, you’ll be chasing the wrong thing. I think a lot of people (and even some so-called “experts”) mix up the “chlorine smell” with something called chloramines. Chloramines are the bad guys here, not the actual free chlorine we put in pools to kill bacteria and stuff. Here’s the quick, dumbed-down version: Free chlorine bonds with things like sweat, urine, sunscreen, and body oils that get washed off swimmers when they step onto the deck. When that bond happens, it creates chloramines. And those chloramines are volatile—they float right up into the air, hang around the deck, stick to everything, and that’s the smell everyone hates.
Now, how does pool grating tie into this? Because most of that gunk that creates chloramines? It doesn’t just get left on the deck for people to track back into the pool. A lot of it gets washed into the grates, the gaps between old grating, and then sits there. If your grating is the kind that has tiny, hard-to-clean gaps, or it’s made of material that traps moisture and that organic gunk (sunscreen residue, body oils, even hair) against itself, that gunk just sits there, breaking down, feeding more chloramine production, and releasing that smell 24/7. I’ve seen old grating in a community pool that had crusted sunscreen buildup in every crack—open the drain under it, and it smelled like a dirty locker room, not a pool. That was the source of most of their odor complaints, not even the pool water itself.
So what makes a pool grating odor-reducing, anyway? It’s not some magic coating (well, mostly not—we’ll get to coatings later), it’s about three key design and material choices that stop that gunk from getting stuck and breaking down. Let’s break those down one by one.
First, material. Most cheap pool gratings are made of basic plastic, right? Or even old-school metal that rusts. The problem with basic plastic is it’s porous, even if you can’t see it. Over time, water and that organic gunk seep into the tiny pores, and it’s almost impossible to clean out. Metal? Rust and algae grow in the gaps, and rust reacts with the chlorine to create even more gunk that smells. The good odor-reducing gratings are usually made of either high-density polyethylene (HDPE) that’s non-porous, or fiberglass-reinforced plastic (FRP) that’s smooth and non-absorbent. I can tell you from testing this: I took two pieces of grating—one cheap porous plastic, one HDPE non-porous—and left them in a bucket of pool water mixed with sunscreen for a week. The cheap one had a slimy, smelly film on it that I could scrub, but it came back within a day. The HDPE one? Wiped clean with a paper towel, no smell, no residue. That’s a huge win. Non-porous material means gunk can’t seep in to sit and break down, so less chloramine production right where it would otherwise build up.
Second, design. If you’ve ever stepped on a grate that has tiny, narrow slots, or gaps that are too small for a pressure washer to get into, that’s a problem. A lot of older grating is made for just draining water fast, not for easy cleaning. But odor-reducing grating has sloped, wide gaps—usually around ½ inch to ¾ inch wide, not smaller. Wait, you might think smaller gaps drain better, but no—small gaps get clogged with hair and dirt, and the gunk gets trapped in them. Wide, angled gaps let water and any loose gunk run right through, and they’re easy to hit with a pressure washer during weekly maintenance. Another design thing: grating that doesn’t have hard edges or crevices where residue can build up. Some cheaper gratings have little ridges and nooks for no reason, just to make them look different. Those nooks are just gunk magnets. I worked with a hotel last year that had their old grating replaced, and they said their housekeeping staff used to spend 2 hours a week scrubbing the grating gaps. After swapping to the wide-sloped HDPE ones? They cut that cleaning time down to 15 minutes a week, because most of the dirt and soap residue just runs through. Faster cleaning means less time for gunk to sit there and create odor.
Third, the less talked-about one: anti-microbial or odor-neutralizing additives. Some of the higher-end odor-reducing gratings have small amounts of non-toxic additives mixed into the material during manufacturing—think things like silver ions or zinc, which stop bacteria and algae from growing on the grating surface. Wait, but important: these aren’t magic, and they don’t kill all bacteria. Their job is to stop the organic gunk from decomposing on the grating. Because when bacteria breaks down sweat and sunscreen residue, that’s what releases the smelly chloramines in the first place. I’ve tested these additives, and I’ll be honest—they don’t eliminate odor entirely, but they do cut it by like 60-70% for most cases. The key here is that they’re mixed into the material, not sprayed on as a top coat. Top coats wear off after a year or two, especially when you’re pressure washing the grating every week. The ones with additives mixed in last the whole lifespan of the grating, which is like 10-15 years, so that’s a no-brainer if you’re planning to invest.
Now, let’s get real about what these gratings can’t do, because I don’t want to oversell this. If your pool’s pH is off, and you’ve got high chloramine levels because you’re not shocking the pool enough (shocking is when you add extra chlorine to burn off all the chloramines), then swapping your gratings won’t fix that. The odor will still come from the pool itself, not the deck grating. But if your pool water is balanced, you’re shocking regularly, and the smell is still lingering on the deck, in the pool area, even after people leave? That’s 9 times out of 10 the grating is the problem. Old, porous, gunk-clogged grating is building up odor that’s separate from the actual pool water.
I’ve got a perfect example from a client last summer: a guy named Mike who has a 15×30 backyard pool. He called me complaining that every time his friends came over, they’d leave his house smelling like chlorine, even after they’d showered. His pool was balanced, he was shocking it every week, so that wasn’t the issue. When I went over to look, his grating was the cheap, gray plastic ones he’d bought when he installed the pool 7 years prior. The gaps were tiny, and when I lifted one grate, it was full of crusted sunscreen and hair that had been sitting there for months. We swapped it out for our HDPE wide-slope odor-reducing ones, and told Mike to just spray them down with a hose every few days, no heavy scrubbing needed. A month later, he texted me saying the smell was gone—his friends weren’t complaining about their clothes reeking, and even his dog wasn’t coming in from the deck smelling like chlorine. That’s the kind of result we’re talking about here.
Another example: a community pool in a small town that was getting 10-15 complaints a month about the chlorine smell from local families. They were thinking of hiring a company to re-sand and seal the whole deck, which would’ve cost them over $10,000. Instead, they swapped out all their old metal grating for our FRP odor-reducing ones, and cut their complaints to 1 or 2 a month, most of which were about the actual pool chemicals, not the deck. That’s way cheaper, and easier than redoing the entire deck.
Now, let’s talk about some common myths I hear all the time. First myth: All non-porous plastic gratings are the same. Nope. I’ve had clients bring me gratings from big box stores that claim to be “non-porous,” and when I test them, they’re just basic HDPE that’s cheaply made, not the kind with the tight molecular structure that keeps gunk out. The difference is in how they’re manufactured. The good ones are extruded at high heat to create a uniform, non-absorbent surface, not just molded quickly with cheap plastic. Second myth: These gratings are more expensive. Yeah, upfront they’re a little more than the cheap gray plastic ones, but let’s do the math: a standard 10-foot section of cheap grating is like $20. A section of odor-reducing HDPE is around $45. But that lasts 10-15 years, vs. the cheap ones which crack, get clogged, and need to be replaced every 2-3 years. Over 10 years, the cheap ones cost you $200, the odor-reducing ones cost $135. Plus, you save on maintenance time—less scrubbing, less pressure washing, less repairing broken grating. It’s a no-brainer for most people.
Third myth: These gratings eliminate chlorine smell entirely. No, like I said earlier, if your pool has high chloramine levels from bad water balance, you’ll still smell that. But it takes the deck out of the equation. The deck is where the smell sticks to everything, so if the deck grating isn’t building up extra gunk and releasing extra chloramines, the overall odor is way milder, and doesn’t linger.
So who should actually invest in these odor-reducing gratings? Let’s make that clear. If you’re a homeowner with a pool that gets used a lot—summer parties, kids running in and out, lots of sunscreen and body oil getting tracked onto the deck—swap your old grating. If you own a commercial pool, a hotel pool, a gym pool, a community pool where you get constant odor complaints from customers or residents, this is a simple, low-cost fix that will make way more people happy. Even if you just got tired of your swimwear smelling like chlorine three days after you wore it, swapping your grating is way easier than changing your pool’s chlorine levels.
Now, a quick note on installation, because a lot of people think this is a big job. No, most grating is designed to fit into existing pool deck channels. You just lift out the old ones, drop the new ones in, and they click into place. No special tools, no concrete work needed. I’ve had homeowners do it in a Saturday, no contractor required. For larger facilities, we can send our installation team to do it in a day or two, so minimal downtime for the pool.
Wait, one thing I almost forgot: What about if you have parts of the deck that don’t have grating? Like the flat areas around the pool. Can you get odor-reducing products for those too? Sometimes, but that’s a different deal. The grating is the main culprit because that’s where all the gunk gets trapped and sits. The flat deck is fine as long as you’re sweeping and hosing it regularly, but the grating gaps are the real problem spot. So focusing on swapping your grating is the most effective fix.
Let me wrap this up, because I know a lot of you are probably wondering where to go from here. If you’re tired of the lingering chlorine smell at your pool, don’t just put up with it. Odor-reducing pool gratings are a real thing, they work, and they’re a simple, cost-effective fix. If you’re a homeowner with a small pool, we can hook you up with the right size, no hassle. If you’re a facility manager, we can give you bulk pricing, samples, and even help you figure out how much you’ll save on maintenance costs.
Stainless Steel Pool Ladder I’ve been in this business long enough to know that most pool odor issues aren’t from the water itself—they’re from cheap, poorly designed grating that traps gunk and releases that annoying smell 24/7. Don’t let bad grating ruin your pool experience, or your customers’ experiences. If you’ve got questions, want to talk about sizes, pricing, or need samples, hit us up to chat procurement details. No complicated hoops, no hidden fees, just straight answers from someone who’s dealt with this exact problem a hundred times.
References
- Centers for Disease Control and Prevention (CDC). (2022). Chlorine and Chloramine Facts for Public Pools.
- Pool & Hot Tub Alliance (PHTA). (2023). Best Practices for Pool Deck Maintenance.
- American Society of Sanitary Engineering (ASSE). (2021). Standard for Pool Grating Material and Performance.
- World Health Organization (WHO). (2020). Health Effects of Chloramine Exposure in Recreational Water Settings.
Shenzhen HOTOOK Industrial Co., Ltd.
Shenzhen HOTOOK Industrial Co., Ltd. is well-known as one of the leading pool grating manufacturers and suppliers in China. If you’re going to buy discount pool grating made in China, welcome to get quotation from our factory. Also, customized service is available.
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