Do you guys store pool chemicals indoors or outside?

[Mark Davis]

Hey all, Quick question where’s the best place to store your pool chemicals? Right now, I’ve got mine in the garage but I’m wondering if the heat/humidity is messing them up. I’ve heard some people keep them in outdoor storage bins, but is that safe? Would love to know what’s working for you all.

 

[Jake Roberts]

I used to keep mine in the garage too, but the chlorine smell started rusting nearby tools. Now I use a weatherproof deck box outside, away from direct sunlight and rain. Just make sure it’s locked up tight if you’ve got kids or pets around. So far, no issues with moisture or fumes.

 

[Sean Whitaker]

I’ve kept mine in the garage too, but yeah, it gets super hot in there mid-summer, and I started noticing the chlorine smell getting way stronger. Now I've got a small plastic shed out back, nothing fancy,

Just keeps stuff dry + shaded. I keep the lid cracked a bit for airflow and make sure everything’s sealed tight. Haven’t had any issues since. Just wouldn’t mix different types of chemicals in one bin, that’s where things can get sketchy.

 

[Harper Clark]

I ended up hacking an old wooden crate into a little chemical cabinet painted it with weatherproof sealant and rigged a small vent at the back. It lives under my deck, so it’s shaded, and the airflow keeps fumes down. Plus, if I ever need to move it, it’s on casters, so I just roll it out of the way!

 

[Benjamin Lewis]

I actually converted an old wooden crate into a mini chemical chest sealed it with outdoor varnish, drilled a few tiny vents, and popped it under my deck. Keeps everything dry, shaded, and the fumes out. Plus, I put it on little wheels so I can roll it away if I need to tidy up!

 

[William Walker]

I used to stash my chemicals in a plastic bin under the carport, but humidity was still a pain. What finally worked for me was grabbing a cheap metal locker from a thrift store and drilling a few tiny ventilation holes up high. I lined the shelf with a cheap rubber mat any spills just wipe right up, and the locker keeps the fumes locked in. Plus, it locks with a padlock so the kids can’t get in. Might be worth a look!

 

[Michael Young]

I went full grandma mode stashed mine in an airtight ceramic jar (yes, really!). Keeps moisture out, looks cute next to my garden gnomes, and I can’t believe how well it works.

 

[Jason Bennett]

I’ve been keeping mine in a shaded corner of the backyard inside a small metal cabinet I picked up secondhand. I added a latch and a few small holes near the top for airflow. It’s far enough from the house to avoid any strong fumes drifting in, and everything stays dry even during storms. Definitely feels safer than leaving them in the garage with all the summer heat.

 

[Ella Robinson]

My garage heat + chlorine fumes once rusted my bike chain.I moved everything to a lockable wheeled deck box outside two separate totes (oxidizers vs acids), a cheap temp/humidity sensor, and a tiny spill kit. Zero rust since. Might be a comfy setup for you too?

 

[John Harrison]

I used to keep all my chemicals in the garage too until I noticed the metal shelving starting to corrode a bit . Now I keep them in a small outdoor shed under some shade, with a vent near the top for airflow. I separate the chlorine from the acids and keep everything in sealed containers. Way less smell, and it feels safer overall. Just make sure whatever setup you use stays dry, humidity is the real troublemaker.

 

[James Carter]

Most of us keep chemicals outside these days, usually in a shaded, ventilated deck box or small shed. The key is:

• Keep them off the ground and dry.
• Separate chlorine from acids.
• Make sure the storage is locked if kids or pets are around.
• Ventilation helps prevent fumes and moisture buildup.

Garages are convenient but can get too hot and humid, which shortens chemical life and can corrode tools or shelving.

 

[Hanry Carter]

I used to store mine in the garage too, but the heat and humidity really can mess with them over time. What’s worked best for me is a lockable outdoor storage bin with some airflow, kept in a shaded spot, as long as it’s secure and away from kids and pets, it’s been much better.

 

[Brandon Hayes]

I’ve done both, and after a few lessons learned the hard way, I’m firmly in the “outside but done right” camp.

Garages are convenient, but they’re usually hot, humid, and poorly ventilated in summer. That combo shortens the life of chlorine, makes tablets gas off faster, and the fumes can quietly rust tools, bikes, shelving… sometimes before you even notice what’s happening.

What’s worked best for me (and a lot of others here):

• Outside storage, but shaded and dry (no direct sun)
• A ventilated plastic deck box or small shed (plastic > metal for fumes)
• Chlorine stored separately from acids (very important)
• Containers kept off the ground and tightly sealed
• Locked, especially if kids or pets are around

Outdoor bins are safe as long as they’re not airtight and not baking in the sun. Humidity is the real enemy, not just temperature. A little airflow makes a big difference.

If you want a simple rule of thumb:

• Indoor garage → convenient but higher risk of fumes + corrosion
• Outdoor shaded storage → safer, chemicals last longer, less smell indoors

Sounds like your instincts are right questioning the garage. A shaded outdoor setup is usually the sweet spot.

 

[Miguel Alvarez]

I’ve kept mine in the garage too, but yeah, it gets super hot in there mid-summer, and I started noticing the chlorine smell getting way stronger. Now I've got a small plastic shed out back, nothing fancy,

Just keeps stuff dry + shaded. I keep the lid cracked a bit for airflow and make sure everything’s sealed tight. Haven’t had any issues since. Just wouldn’t mix different types of chemicals in one bin, that’s where things can get sketchy.

What Sean Whitaker mentioned about heat really lines up with my setup. I moved mine out of the garage once summer hit because the heat made everything smell stronger than it should. Keeping them shaded, ventilated, and sealed made a bigger difference than the exact location.

 

[John Smith]

I’ll add one thing that doesn’t get talked about much, and that’s temperature swing more than just heat.

I’m in a spot where my garage isn’t just hot in summer, it also gets cold in winter. Those constant swings seemed to clump up my granular chlorine and harden up some balancers way faster than I expected. Even if they’re sealed, repeated moisture cycling in the air can creep in over time.

I ended up moving everything to a small resin shed on the north side of the house where it stays shaded most of the day. I keep oxidizers on one shelf, acids on another, and nothing sits directly on the floor. I also avoid stacking containers tightly together so air can move around them. Since doing that, I’ve noticed way less odor and the products seem to last closer to their labeled shelf life.

One more small thing, never store anything near lawn fertilizer or gasoline. Cross fumes and accidental mixing are not something you want to mess with. A simple shaded, ventilated outdoor setup with separation and elevation has been the safest balance for me.