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Your cart is empty.The Winter Pill packs a powerful punch in one 4 in ball that treats up to 30,00 gallons. Just poke a hole in the round plastic casing with the included hole-punch tool (a pust-pin) and toss the Winter Pill into the pool. The slow-delivery system will leak out a consistent stream of all-in-one winterizing pool chemical formular all winter long. Pool Winterizer in a Pill The AquaPill WinterPill will help make pool closings fast and easy, so your swimming pool water is clean and clear for opening in the spring. The Winter Pill will allow you to avoid opening your pool to cloudy or green water. Our Winter Pill is very effective for pools using a mesh cover. The Winter Pill also makes winterizing your pool easy and quick. Try the Winter Pill when you close your above ground pool or inground pool this year to protect your pool surfaces and help your winter pool closing kit from becoming depleted too soon.
Penny
Reviewed in the United States on February 16, 2025
Half way through winter season our tarp blew off, water was clear. End of winter season water is still clear.
Dar Swiler
Reviewed in the United States on February 14, 2025
These were great in closing my pool great qualityLove these
Aemiller
Reviewed in the United States on September 20, 2024
This is the 3rd time purchasing this product. I would highly recommend this to everyone with a pool. Just use the purchasing tab thing in the pill and remove. Drop in pool and let it work all winter long. Water stays clear.
Jen M
Reviewed in the United States on December 27, 2024
I have been purchasing these for years and love them! At the end of the season all we do is pop a hole in this ball and it keeps my pool fresh and clean for the next summer. Nothing could be easier and it’s cheaper than all the other closing kits out there.
Kevin M.
Reviewed in the United States on December 23, 2024
We buy this every year and have never had any problems when opening our pool in the spring.
TK
Reviewed in the United States on November 9, 2024
This is my 3rd year using the Aqua Pill to close my inground pool. I have a safety cover that allows water in the pool during the closed months. My water is pretty clear using this Pill, and a little shock at closing.
Tuppergun
Reviewed in the United States on November 16, 2024
This product was super easy to add to my pool after cleaning and partially draining for the winter. I'll let you know in the spring if it performed as promised.
Jack MeHoff
Reviewed in the United States on October 26, 2024
Easy to use. Does what it’s supposed to do. Very cost effective way to have clean water when you open your pool
Brandon D
Reviewed in Canada on December 20, 2023
After closing my pool this season, I figured I would try one of the WinterPills to see if I could save myself some trouble when spring rolled around... but I watched as my pool slowly turned greener and greener with each passing day.
S Victoria
Reviewed in Canada on November 30, 2023
I have ordered a similar item and it works great. I have a smaller size above ground pool and ordered this item and was surprised at the size its about double the last one I bought I did notice the price was higher, but put that down to inflation. I did not notice information on the larger size in description, but it still works next time I will try to get the smaller one as that fits my needs best.
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