
Did you know that closing you pool when it is green or cloudy can make for a more difficult spring opening?
When the pool gets closed for the winter, it is quite tempting to think, “The pool is going to be covered for the winter anyway—how clean does it really need to be?”
Quite clean, actually!
Closing the pool while the pool is still gunky, green, cloudy, or full of debris can create more work when spring arrives. Instead of starting the pool season off fresh with clear, balanced and ready to swim water, you may deal with stubborn algae, stains, poor water chemistry, and a much longer cleanup process.
Taking the time to properly prepare your pool before closing can make your spring opening significantly easier.

What happens when you close a cloudy or green pool?
A pool doesn’t simply stop changing once that winter cover goes on. If algae is present when closing the pool, it can remain in the water throughout winter. Organic debris and contaminants can also contribute to water-quality problems. When the pool is opened again in the spring, these issues may have had months to develop.
The result of this? A pool that needs considerably more help in treatment before it is ready for nice swimming clear water!
- Algae can be stubborn, if you close the pool without addressing it, you’re essentially leaving the problem in place for the off-season.
- When temperatures begin to rise in spring, algae can become active again. A pool that was only slightly green in the fall may require significant treatment and filtration before it returns to clear water.
- While cloudy pools can hide issues, often indicating an imbalance in pool chemistry, filtration or circulation! Leaving these problems without correction carries it on to the next season just like the algae.
- Leaves, dirt, pollen, and other organic contaminants don’t belong in the pool when it is being put to bed!
As organic debris sits in the water, it can contribute to staining and can make spring cleanup more difficult. Removing debris and cleaning the pool thoroughly before closing helps reduce the amount of organic material left behind during the off-season.

Don’t Let a Green Pool Become a Spring Problem!
The goal of winter pool closing isn’t simply to put a cover over the water. It’s to prepare the entire pool so it can safely and efficiently sit through the off-season and be ready for the next swimming season. That means proper chemicals and balancing; not just cleaning. Shop online for algae treatments, clarifiers, and closing kits here:
Pool Chemicals – Algae — Aqua-Tech
Pool Chemicals – Cloudy Water — Aqua-Tech
Pool Chemicals – Opening/Closing — Aqua-Tech
If your pool is green or cloudy at the end of the season, don’t assume that winter will take care of it. In many cases, postponing the problem can mean more work when you’re ready to open the pool.
Book your closing date now to ensure you get the spot you want, and if you have any questions about what to expect from your closing appointment, reach out to our service team: https://aqua-tech.ca/service/service-pool-closing/
Phone: 204-233-8822 (and select Service from the directory)
Email: service@aqua-tech.ca
Bring in a water sample at least one week before you want to close the pool, and the Aqua-Tech water lab team can help you get it clear and balanced before closing time!
If you have questions about your water chemistry or necessary steps before closing, contact our water testing team and they will be happy to help:
Email: watertesting@aqua-tech.ca
Text: 204-817-8238
