How to Winterize an In-Ground Pool

Last Updated: May 28, 2021

The Book of Ecclesiastes tells us, “To all the things there’s a season.”  That consists of shutting down your swimming pool and getting ready it to survive the chilly winter months so it’ll be in good condition for the next spring.  If you shut it down and winterize it correctly, beginning it up once more within the spring will probably be a lot simpler than in the event you didn’t.  The process is easy, i.e., not sophisticated, however it does require some effort and time in your half.

Cleaning and Chemicals

The very first thing you need to do is completely clear the pool.  Skim all of the leaves and particles, then run the vacuum over the entire pool, all the best way up to the water line.  Backwash the filter and add extra chemical compounds.  Repeat the entire course of the subsequent day.  Then do it once more on Day Three.  This triple redundancy ensures that your pool is glowing clear earlier than you shut it down.

You additionally need to ensure all of the chemical ranges are as shut to splendid as doable.  During the three days of cleansing, add chemical compounds as wanted, and use testing stripes to purpose for the next ranges:

  • pH – 7.2-7.6
  • Alkalinity – 80-100 components per million
  • Calcium Hardness – 175-200 components per million
  • Chlorine – 1-3 components per million

Don’t over-do the chlorine.  Too many pool house owners have found to their dismay that chlorine eats rubber the best way salt eats steel.  Stay inside the pointers or the chlorine will eat holes in your pool cowl, and doubtless your pool liner as properly.

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Winterizing Kit

Purchase a winterizing equipment.  You can search on-line for “winterizing pool kit” and discover extra choices than you may shake a stick at.  Most of them have the identical chemical compounds and value tags connected so it principally comes down to a matter of name title preferences.

In The Swim Pool Winterizing and Closing Chemical Kit

Follow the directions on the equipment.  Don’t skip something, strive to double-up, or alter the amount of the chemical compounds. Winterizing swimming swimming pools has turn into one thing of a science and the directions that include the equipment are the product of many years of analysis and trial-and-error.  Don’t strive to second-guess them.

Remove all of the deck gear together with rails, ladders, and so on., then clear the filter, skimmer, and pump basket.  Remove any unused chlorine tabs from the skimmer or chlorinator basket.  By this time, in the event you’ve adopted the directions you’ve already backwashed the filter 3 times so it ought to be fantastic.

Winter Water Level

Lower the water within the pool beneath the go away of the skimmer and jet returns (the place the water shoots into the pool).  The simplest way to decrease the water degree is to backwash the filter once more, solely this time go away it going till the water degree drops beneath the skimmer.  Use a backyard hose to siphon out extra if want be.  The remaining water degree ought to be at the very least 2 inches beneath the extent of the bottom skimmer or jet.

winterize pool low water

Image credit score: andrijosef, Shutterstock

Never fully drain the pool!

Use a store vac to blow the water out of all of the traces going forwards and backwards from the pump to the pool.  Then cap off your return traces with expandable rubber plugs.  Reusing once-frozen rubber is often a foul concept, so while you take away them within the spring, merely throw them away.  Then add anti-freeze (any model) by pouring it by way of the skimmer.  The splendid calculation is 1-gallon for each ten toes of hose between the pump and the pool.

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Final Steps

Remove all the drain plugs from the pool gear, together with the pump and filter tank.  Storing all of the plugs within the pump basket is an efficient means to preserve all the things collectively.

Finally, place the pool cowl over the pool with the black aspect dealing with down.  Algae is a plant, and vegetation don’t develop with out daylight so that you need to do all the things you may to cease any daylight from reaching the water.  Anchor the perimeters of the duvet with water tubes which might be 3/4 filled with water.  Never fill them fully or they’ll burst in the event that they freeze.  As an instance, a small 12’x24′ pool will usually require 9 or ten water tubes to maintain the duvet in place.  For bigger swimming pools, add extra water tubes.

pool cover

Image credit score: SMC, Wikimedia

At this level, you’re accomplished.  Your pool is prepared for the winter.

Optionally, you may add a pool cowl pump.  These are small, light-weight pumps designed to sit on prime of the pool cowl in the course of it.  As water and rain accumulate over the winter months, they will pump it off the duvet.  Typically they plug into a normal A/C outlet and are supposed for outside, winter use.

Featured picture credit score: joserpizarro, Shutterstock

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