Pool covers can shrink due to excessive heat, UV exposure, chemical damage, or improper storage. Most shrinkage occurs with vinyl and mesh covers, while solid safety covers are more resistant but not immune.
Most pool chemicals should not be stored outside in winter due to freezing temperatures, which can damage containers and reduce effectiveness. Liquid chemicals are especially vulnerable to freeze damage.
You can leave a pool pump outside in winter if properly winterized by draining all water and protecting from freeze damage. In mild climates above 32°F, minimal winterization is needed, but freezing temperatures require complete water removal and protective covers.
You can leave an above ground pool empty temporarily, but extended emptying risks structural damage from ground pressure and UV exposure. Proper winterization or partial draining is usually safer than complete emptying.
When used properly, standard pool chemicals pose minimal cancer risk. The key is proper handling, storage, and maintaining balanced water chemistry to avoid harmful byproducts.
Pool stabilizer (cyanuric acid) does not go bad and has an indefinite shelf life when stored properly in a cool, dry place. However, exposure to moisture can cause clumping that affects dissolving.
Pool stabilizer (cyanuric acid) doesn't technically expire when stored in a cool, dry place. However, granular stabilizer can clump and lose effectiveness when exposed to moisture, while liquid forms remain stable longer.
Most pool filters should NOT be left outside during winter in freezing climates as trapped water can cause cracking and damage. Proper winterization requires draining and storage.
Most pool chemicals should not be stored outside due to temperature fluctuations, moisture, and safety risks. Liquid chlorine and muriatic acid have specific temperature requirements, while powdered chemicals need dry, cool conditions.
Pool chemicals can make you sick through skin irritation, respiratory problems, and chemical burns when improperly handled or when chemical levels are imbalanced. Proper storage, handling, and water chemistry prevent most health risks.
Pool stabilizer (cyanuric acid) doesn't technically expire, but it can lose effectiveness if exposed to moisture or extreme temperatures. Properly stored dry stabilizer can last indefinitely.
Pool calcium chloride and calcium hardness increasers don't technically expire but lose effectiveness over time. Properly stored, they remain usable for 3-5 years, though moisture exposure reduces their potency significantly.
Most liquid pool chemicals can freeze and become damaged, while powder chemicals are generally freeze-resistant. Proper winter storage in heated areas above 32°F prevents costly chemical replacement.
