I’m using a new pool company this year to close up my pool for the winter. They have great reviews and don’t add anything to the water themselves—they said they’ll use whatever I provide. Other companies used to charge for “winterizing chemicals” but never explained what they were. So, what should I be providing, if anything? My pool is about 20 x 40 feet (around 120,000 liters or 31,700 gallons), and I’m in Manitoba where it can get down to -30°C. Thanks for any advice!
The LSI of the water should be adjusted for the coldest temperature expected. If this is planned and accounted for properly, you might not need to make significant changes.
@AquaAdventurer I also prefer using a long-lasting copper algaecide because most people don’t open their pools on schedule.
@BreaststrokeBuff I don’t do that. I’d rather handle a green pool if a client opens late than deal with the copper later.
Ensure the water is fully balanced -always is anyways, then drain the water down to expose my lowest jets (step jets); add some liquid chlorine (I run a salt pool but pickup some liquid when closing), and some algicide; blow the lines out, then blow some pool antifreeze through and cap the lines; and put on the safety cover.
Had my pool for 20 years, last two years I paid a company to do the closing. Maybe I’ll do it myself this year.
Really nothing. Water must be in equilibrium. When I open it, it generally looks a little green because of the mesh cover.
I manage a pool company and add 5 lbs of calcium hypochlorite shock and 1 quart of Algaecide 60 to each pool before closing. I perform this treatment on the same day as closing, right before I blow out the lines and cover the pool. I suggest you follow this approach.