Thursday, August 2, 2012

How to fix a swimming pool automatic water fill

How to fix a swimming pool automatic water fill
This guide will cover how to find and identify your built-in swimming pool’s automatic water fill. written by Also included is adjusting them to set the water level and how to replace one since these occasionally break and need replacement or repairs.

How to find your automatic water fill water shutoff valve
If the automatic water fill breaks, it can run continually and overfill the pool (and then flood the yard) so it will need to be shut off.  To do any work on the water fill, it will first need to be turned off. There is no industry standard on where to put the shut off valve or what it will even look like. It can be near the pool equipment, at the house (where the backyard hose connects), or somewhere else in the backyard (i.e. in bushes or grass).
Below are a few examples of automatic water fill shutoff valves. (Click on any image to see a larger version)

Finding your automatic water fill device
These are generally found on the pool deck near the deck edge with a skimmer lid top.
It may be held in place with screws that will need to be first removed to open the lid.

Three types of built-in automatic water fills
Pentair Autofill (the leaver):

The most common type, this is a float connected to an adjustable leaver. These leavers are screwed into the side of the water fill cubby. A nice aspect of this model is that there is a large variety of easy to find  third party replacement leavers and floats available for this unit.

To adjust, loosen the wing-nut. This allows the float to be raised or lowered. The higher the float, the higher the water level of the pool will be; the lower the float, the lower the water level of the pool.

The Poolmiser:
(From the Poolmiser website)

The second most common, this one has a moveable float that sits around a center pipe. These are screwed to the bottom of the water fill cubby. Because of the limited space, the top may need to be removed to turn the center shaft without rotating the float when replacing one of these. See the included instructions for more information on installing a replacement Poolmiser.
To adjust, turn the top screw left to raise the float (raise the water level) and turn right to lower the float (lower the water level).

Paramount Paralevel:
(From the Paramount website)

Unfortunately, I have never worked with or seen one of these installed so I am unable to provide comments.

Replacing the automatic water fill (Pentair Autofill)

Note: This side connecting water fill needs to be placed with the water faucet side down.

Unscrew the existing broken leaver at the base near the wall in a counter clockwise direction with either a crescent wrench or pliers.

On the new replacement leaver, use a thread tape or thread paste on the exposed thread of the water fill.

Screw in the entire piece clockwise hand tight. Using a crescent wrench or pliers, align this water fill so the faucet side is down.

The water fill level can also now be set. There is an adjusting wingnut on the side of the leaver that can be loosened to allow the float to be moved up and down. The lower the float, the lower the water level of the pool.

Once the level is set, turn the automatic water fill shutoff valve back on.

Replace the top of the water fill cover.

To see additional pictures see a small post here


  1. I like those info on your blog about the functions of a pool equipment. But before I read your blog, I don't know how to use some of my pool equipment and accidentally I broke some of it. Then it cause a leaks on my swimming pool. Do you have an idea on how to fix my problem on my pool equipment?

    Pool Equipment Repair

  2. I dont know how to use some of the pool supplies I got in long island, and I was wondering if you could post a blog about that..

  3. maintaining swimming pool is not an easy task. pool owner needed various pool equipment to maintain it. your article help to understand how to handle pool equipment. thanks for sharing good information. some of the best pool equipments are k chlor pool chlorinator, onga pool pump, pentair intelliflo pump, ozone generator..etc.

  4. Does anyone know about how often the auto-fill will stop working and needs to be replaced? This is the second time in less than 18 months my pool guy says it needs to be replaced, I think I am getting screwed.

    1. Normally they should last 3-5 years. Maybe ask your pool guy to show you the old one and the new together so you can see what has happen. If it really is going out that quickly maybe the auto fill is being damaged by the water chemistry (alkalinity to low or high, hard water damage ect)

  5. I have used this article numerous times and I think it is about time for me to say 'Thank You!', for writing such a great piece! :)

    David | Pool Supplies Long Island

  6. Thanks so much for sharing this information! I have been looking into pool supplies in long island to fix my pool. I didn't know there were so many options. Thanks!

  7. This blog has been so helpful to me in the past. Thank you for all of your hard work! :)

    David | Swimming Pool Supplies Northbrook, IL

  8. Really helpful thank you for sharing. I was staying at my parents and luckily i was able to buy all the pool supplies in East Northport, NY. I fixed the pool up right away, summer has been so fun!

  9. Thank you for this informative post regarding the automatic water shut off valve . I couldn't find our valve and we needed to close off the water as soon as possible.

  10. Awesome article! I have gradually become fan of your article and would like to suggest putting some new updates to make it more effective.
    Automatic swimming pool cover

  11. Hopefully be reading this my husband will be able to get out pool fixed again. It is starting to get hot and I would love to start using it again. We love our pool parties we have.

    Alena |

  12. Nice. Informative. Helped me find my auto-fill. As a new pool owner Im finding about a 4:1 ratio of maintenance to enjoyment. At least its not 10:1 like being a Jag owner!

  13. I just built a pool in my backyard and I want to keep it maintained and in good shape! Where can I get pool supplies? Things to keep it clean and things that are just good to have?
    Holly James |

  14. I think that I am having trouble with the automatic water fill shut off valve I saw in one of the above pictures. As of now I just can't seem to do much of anything with my pool because it won't increase the water level. I don't know if it is a sensor problem or what, but I would like to fix it sooner than later.
    Cynthia |

  15. I just recently got a new swimming pool. The only thing that I need now is some awesome pool supplies! I don't really have any right now. I definitely need to get some. As soon as possible.

  16. It's really helpful to know how to fix something like this. It seems like it's a pretty common issues with pools. I just had one installed in my yard this last week and we're getting it ready for the first swim. I want to make sure I have all the supplies I need to maintain and repair the pool if I need to.

  17. Nice Post! Thanks again for sharing these types of post.

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  18. Wonderful post with much helpful information. Fixing automatic water fill is not possible for me until I came to know about it. Thanks for sharing with us. I recommend people a leading online store of high-quality pool accessories.

  19. Does anyone know a pool repair company in Haiti?


  20. يسمح لنا في شركة ركن البيت القيام بجميع الخدمات المنزلية التي تجعلنا متفوقين علي غيرنا في لنظافة العامة بواسطة اساليب متميزة فلدينا خدمات شركة تنظيف مسابح بالرياض التي نعمل فيها علي نظافة المسابح وقتل البكتريا التي توجد بها بواسطة الاليات التي يستخدمها عمالنا ولدينا قسم شركة تنظيف خزانات بالرياض للقيام بجميع اعمال النظافة السليمة للخزانات العلوية والارضية وقتل جميع البكتريا التي توجد بها