Matt walks you through the process of closing an inground swimming pool. Watch how to prepare the filter system, blow out the pipes and put on the winter pool cover.
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⏰ Timestamps:
00:00 - Introduction to Winterizing Your Inground Pool
00:15 - Step #1. Clean And Test Pool Water
00:29 - Step #2. Drain Pool Below Skimmer
01:08 - Step #3. Blow Out Pool Lines
02:45 - Step #4. Add Winter Pool Chemicals
02:57 - Step #5. Add Winter Cover
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Hey everybody welcome to swimuniversity.com. My name is matt javanese and today i'm going to show you how to close an in-ground swimming pool booyah. The first thing we're gon na do is make sure the pool is as spotless as possible all right. So that means you're gon na skim.

It you're gon na brush it and you're gon na vacuum. It and you're gon na just make sure that it's perfectly clean and check the ph and alkalinity and make sure that's balanced as well. The next thing we're going to do is drain the pool below the skimmer okay. The way we do, that is to turn off the filter system, set your filter to backwash, set the valves to the main drain so that we're that way, you're pulling water from the main drains at the bottom of the deep end and turn your filter on.

Let that backwash until the sight glass is clear enough that you can see through or about two minutes, then shut off. Your filter system turn the back wall or turn the multi-port valve to waste turn it back on and let it run and drain your pool below the skimmer just about a few inches below the skimmer will do just fine. The next thing we're going to do now that the pool has been drained is blow out the lines. Again, i want to stress, if you feel uncomfortable doing this part, please hire a professional to come out and blow out your lines, especially if you have tricky things like a fountain or a heater, it can be really difficult to do.

What you're going to need is an air compressor, a shop vac or an air blower, one of those three things or a combination of the three things will blow out both your skimmer line or your suction side and your pressure side, all the return valves and we're Going to show you how to do that right now, remove all the return, fittings and skimmer baskets then remove all the drain plugs from your filter system set the multi-port valve to recirculate set the valve in front of your pump to the skimmer line. Attach the air compressor to the drain, opening on your pump and turn it on. This will move air through your skimmer and return lines, starting with a skimmer use, a shop vac to remove the water, that's being blown out so that the skimmer is dry, then plug it up, go around and plug up all the return lines. Lastly, turn the valve in front of your pump to the main drain setting to move air.

That way, you should see bubbles come up from the center of the deep end. Let that run for about a minute turn the valve back to the skimmer port and shut off the air compressor. It's good practice to put a plug inside of the pump in case the valve leaks. Once that's all done.

All of your lines in your pool should be free of any water. The next thing we're going to do is add winter chemicals to your pool. I recommend you go to your local pool, supply store and buy a winter closing kit for your size pool now that you've added the chemicals. The last thing you want to do is close it up.

That means throwing the winter cover on this pool. We have a winter safety cover, but if you don't have a safety cover, you can use a plastic winter cover for your pool and use water bags to secure it to the deck. So that's all you need to know how to close your in-ground pole. It's about five or six big steps and you're done.
It can take a couple of hours and it's definitely easier with a friend to help you out. You can visit our website swimuniversity.com and thanks for watching that's how we do it: son yeah yeah. That is how we do it: son you.

49 thoughts on “How to close (winterize) an inground pool | swim university”
  1. Avataaar/Circle Created with python_avatars J Hutch says:

    Well done, thanks for being succinct. Service area Nepean??

  2. Avataaar/Circle Created with python_avatars B Davi says:

    What kind of air compressor is best to use? Recommended psi? Are you in Ottawa ?

  3. Avataaar/Circle Created with python_avatars Muataz Jabri says:

    I usually shock my pool before I close it to prevent the water from turning black (it becomes transparent greenish).

  4. Avataaar/Circle Created with python_avatars Renee Woodside says:

    Question – if I have a equalizer hole in my skimmers, do I need to plug those also?

  5. Avataaar/Circle Created with python_avatars Michel Poirier says:

    I used a compressor to blow out my main drain lines. Bubbles were not coming up equally from both pipes. A lot more on one of the two and a bit on the other. Is this going to cause me some issues? Or, as long as bubbles come out means that water was pushed out. Thanks!

  6. Avataaar/Circle Created with python_avatars Javi Mac says:

    Thanks. That helped a lot

  7. Avataaar/Circle Created with python_avatars craigzilla100 says:

    I was wondering about blowing out the lines.. how do you keep the water out of the main drain without plugging it up? Wouldn't gravity just pull the water back into the line? It's deep underground, so I also wonder if it would be ok… Service area Barrhaven??

  8. Avataaar/Circle Created with python_avatars schmitty bang says:

    What is the air fitting that goes into the pump basket drain hole?

  9. Avataaar/Circle Created with python_avatars Kelliann Devine says:

    No i dont like my pool closed

  10. Avataaar/Circle Created with python_avatars Jignesh Soni says:

    Came across your video while trying to find instructions about blowing out the main drain for winter. I am confused how my pool plumbing is setup. I connected air compressor to blow out all my lines. I was able to blow out my 2 skimmers and all the returns. But I am not able to do this for the main drain. I have tried so many things but just can't figure this out. No matter what lever I change….I just do not see bubbles coming out from main drain. Any idea what is going on?

  11. Avataaar/Circle Created with python_avatars michael tappe says:

    I come back to this video every year! Thank you

  12. Avataaar/Circle Created with python_avatars Youtuber says:

    It's better to not drain the pool and to maintain the water level IMO, the exposed plaster can be damaged. But in the skimmer you'll want to use an expandable plastic plug and/or bottle partially filled with pool antifreeze and/or a styrofoam pool float for expansion.

  13. Avataaar/Circle Created with python_avatars Scott Contant says:

    why the plug in the pump? is the drain plug is removed from the pump……..

  14. Avataaar/Circle Created with python_avatars Jim Bertram says:

    Quick n to the point.

  15. Avataaar/Circle Created with python_avatars billy bob says:

    these guys have no clue Are you in Barrhaven ?

  16. Avataaar/Circle Created with python_avatars Luba Luba says:

    Hey you didn't put any anti freeze in the lines or drop the water below return lines ???

  17. Avataaar/Circle Created with python_avatars Carol Monteiro says:

    Hi I need help

  18. Avataaar/Circle Created with python_avatars cliff leong says:

    You skipped the winter chemicals part!

  19. Avataaar/Circle Created with python_avatars Chad S says:

    Is antifreeze necessary?

  20. Avataaar/Circle Created with python_avatars Beena Azeem says:

    We are having our pool professionally winterized and they insist the pool lines don’t need to be blown out if the equipment is higher than the pool. (Ours is 5 feet higher). Is there truth to this?

  21. Avataaar/Circle Created with python_avatars Wil Haines says:

    I have a Jacuzzi sand filter and there is no recirculate setting on this older filter. What setting should be used when blowing the lines out on a Jacuzzi. I have filter, rinse, winterize, whirlpool, backwash, test and drain. I tried with the whirlpool setting and no air came out of the bottom of the pool drain port. Switched to the filter setting and was able to see air coming out, but would still like to know what setting should be used when blowing air out. Thanks Are you in Nepean ?

  22. Avataaar/Circle Created with python_avatars B Carr says:

    I drained my pool this fall and don't plan on refilling iy till next year. So now that it is empty what else do i have to do?

  23. Avataaar/Circle Created with python_avatars Derek Hoelz says:

    Thanks for the great video. I used a compressor and blew out the return lines. But, I cannot clear the line from the skimmer to the pump. I have a feeling it is pulling from the deep end drain as well as the skimmer??? However, I cannot get air to come out of the deep end drain when I compress the system and plug the skimmer drain. I keep getting a never ending supply of water refilling the skimmer from the drain. Any advice would be appreciated.

  24. Avataaar/Circle Created with python_avatars TheCoolbreeze45 says:

    1.) Clean Pool 2.) Drain below skimmer using main drain/backwash–Once running filter water is clear, switch to waste. 3.) Blow lines dry, first remove all return fittings, drain plugs and skimmer baskets., set valve to "re-circulate" change source to skimmer. shop vac the skimmer waste water out-plug it once dry. then plug the return lines. change source to main drain line after a few minutes of bubbles from the bottom quickly move it back to off (not skimmer or main.) 4. add winterizing chemicals. 5. cover. and lock safety gates. 6. Enjoy a well-earned beverage.

  25. Avataaar/Circle Created with python_avatars Barry White says:

    Are there extra steps you must take when you close your in ground pool if you have a heater?

  26. Avataaar/Circle Created with python_avatars AverageJoe11 says:

    Great video, thanks!

  27. Avataaar/Circle Created with python_avatars Jim Chambers says:

    I am brand new to pool ownership and I apologize for the stupid question:  I have a Hayward sand filter and there is a line going into the top of the filter from the pump and another line going out and into the concrete, which I assumed was the return line.  How do you ensure this line is blown out?  I know you can't blow air through the filter, do you need to take it apart to blow it out or are you blowing it out backwards and everything is ok?  Again, I apologize for the stupid question.

  28. Avataaar/Circle Created with python_avatars Marco Deluca says:

    what about if the filter is in side the house and what about anti freeze in the skimmer??

  29. Avataaar/Circle Created with python_avatars Swim University says:

    When do you close your inground pool for the winter?

  30. Avataaar/Circle Created with python_avatars Giacomo says:

    Pool closed

  31. Avataaar/Circle Created with python_avatars Vivian Albano says:

    I live in the East Bay area California, should I winterize my pool?

  32. Avataaar/Circle Created with python_avatars Andrew Home says:

    What is the point of balancing water and adding the winterizing kit? After 6-9 months heavy rain and thawing ice will dilute everything…

  33. Avataaar/Circle Created with python_avatars Nukey zx10r says:

    No good for cold winter climates.

  34. Avataaar/Circle Created with python_avatars JOE TERRA says:

    Antifreeze?

  35. Avataaar/Circle Created with python_avatars Noel sanchez says:

    I live in Las Vegas nv, should I close my pool for the winter? Keep in mind Vegas winter days are around 70 to 80 degrees days. Are you in Orleans ?

  36. Avataaar/Circle Created with python_avatars Mark Schadler says:

    I know I'm 3 years late, but I have separate feed valves from my skimmer and floor drain, so I lower my water below the skimmer with the skimmer valve closed, then open the valve to suck the water out of the skimmer and line. Then I blow it back from the skimmer to the pump with a shop vac. Way more effective. I also don't add chemicals after blowing out the lines. Add them before so they fully dissolve and the chemistry balances out before testing. If you can't circulate the water, there's no way your chemicals will circulate and your readings will be off. Most people will not get bubbles out of their floor drain. That's OK as long as you pressurize the line enough to push the water below the frost line and close the valve on the drain line while still under pressure. That way you get an air lock in the line that will prevent the water from coming back up above the frost line.

  37. Avataaar/Circle Created with python_avatars cardo says:

    Great vid! Very well done and concise similar to my set-up, was a big help.

  38. Avataaar/Circle Created with python_avatars Montery12 says:

    Can i run my motor on pass under the spa jets til i have the
    right water level to get in and work on my light fixture comfortably?  Thanks.

  39. Avataaar/Circle Created with python_avatars Pavel Lyakh says:

    Красавчик!!! Service area Orleans??

  40. Avataaar/Circle Created with python_avatars Jim J says:

    I understand why you blow the water out of the lines but was wondering if you could just lower the water below the jets then turn on the pump to blow out the lines instead of using a compressor. Everything else you mentioned would be the same. Thanks

  41. Avataaar/Circle Created with python_avatars Curt Gar says:

    Glad they are not closing my pool👎🏽. They must be in FL

  42. Avataaar/Circle Created with python_avatars Lutcha Rainer says:

    POOL'S CLOSED

  43. Avataaar/Circle Created with python_avatars Ali Musaoglulari says:

    Video says set the filter to recirculate but the website tutorial says to put it on filter. Recirculate didn't work for me, but filter did. Curious though, why do they say two different things?

  44. Avataaar/Circle Created with python_avatars jaywhy19 says:

    So how do you build up pressure if you remove all the plugs before blowing the lines? Service area Kanata??

  45. Avataaar/Circle Created with python_avatars Thomas Garrett says:

    That was an excellent presentation. I am having my pool closed professionally but next year is another story. Thanks.

  46. Avataaar/Circle Created with python_avatars Jon Morgan says:

    thanks MAtt. Yeeeah

  47. Avataaar/Circle Created with python_avatars Billy Morris says:

    what size air compressor do you need.

  48. Avataaar/Circle Created with python_avatars Linda Lee says:

    I tried the shop vac and getting an air compressor and neither worked because I don't know what kind of a hose to use to get down to the size valve that will fit into the pump drain plug.  I looked at the Cyclone pool line blowing machine and it doesn't look like it arrives with all necessary equipment either.  Any advice?  It's starting to get cold.

  49. Avataaar/Circle Created with python_avatars Ken Burt says:

    why does the pool have to be clear before you close it

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