Winter is coming, which means it is time for your swimming pool closing. 

There are, however, a number of common mistakes people make when winterizing their pool. These mistakes can result in everything from minor inconveniences to costly repairs. That is why we suggest reading this list to help you avoid these mistakes from the start.


8 common mistakes homeowners make during their swimming pool closing 


1. Improperly winterizing pool return lines

Failing to winterize your pool’s return lines can lead to extensive damage, including leaks or even burst pipes. That is why it is vital to ensure your pool lines are carefully prepared for your swimming pool closing. In order to do that, drain the water from your pool’s pipes and then plug the lines. 

2. Forgetting to open and drain the heater’s pressure switch

Inside your pool’s heater, there is a pressure switch. This switch is there to ensure water is flowing through the heater before the heat turns on. Without the pressure switch, you can easily burn your heater out. To protect the switch from being damaged throughout the winter, before you close your pool, you need to open and drain the water from the pressure switch. 

3. Leaving water in the heater

Water also needs to be drained from your pool heater itself. If water is left in, the heater can crack. This can lead to leaks, which are costly to repair, or can force you to replace your entire heater.

4. Not taking the pressure gauge out of the filter

A pool’s filter pressure gauge is a sensitive piece of equipment. If it freezes, it is highly likely to become damaged or broken. Given this, the only sure way to protect your pressure gauge for the winter is to remove it and place it in your home, pool house, or another heated space. 

5. Not cleaning the water 

You should never close your pool with dirty water in it. Prepare your water for your swimming pool closing through the following steps: 

  • Skim out debris
  • Run your pool vacuum
  • Balance the chemicals in the water

Once you have finished these steps, you are ready to cover your pool water.

6. Not securing the swimming pool cover

There is a common mistake that can arise in relation to covering your pool’s water – not properly securing your cover. If your cover isn’t properly secured, it can pop off or shift out of place. This allows debris, animals or even your children to get in your pool. The pool covers we routinely use by Pool Patrol stay safe and secure all winter long. 

7. Having water bags that are too full 

If you hold your pool cover down with water bags, double-check that they are only 50% to 60% full. Why does this matter? When the bags are filled with more than 75% water and they freeze, they can burst. Avoid this by checking the level of the water in the bags while winterizing your pool. 

8. Not reaching out to a professional when needed 

The final common issue is not getting help when you need it. If you are ever unsure or notice a significant problem like a leak while winterizing your pool, it is time to reach out to a professional pool maintenance team. Waiting to do so could allow issues to grow, becoming even more problematic.

Want to keep using your pool throughout the milder winter weather? You can always put off your swimming pool closing. Just make sure you then continue the appropriate winter maintenance.