Why Should I Leave Water in My Pool?

rising sun pools excited happy kid boy jumping in pool, water fun

Why Should I Leave Water in My Pool?

Have you ever wondered why resources tell you to keep your pool water in your pool during the winter rather than draining it completely? You have most likely read that you should simply lower the water below the skimmer level and jets to prevent the plumbing lines from freezing and bursting. What is the logic behind leaving the water in the pool?

Why Leave Water In?

You may think that leaving the water in your pool for the entirety of the winter season will just leave you with murky, gross water when it is time to open your pool for the summer. But if you completely drain the pool, you are putting the whole liner at risk for damage. Not only can it rip from the debris that gets into it, but it can also dry out, shrink, and crack. Leaving the water in your pool will help stop it from getting torn up regardless of the weather.

Clean Water Adds Protection

Leaving water in your pool keeps it protected from the elements. If you live in a deep freeze area, you may still stand by the thought that draining your pool is the best option so it doesn’t freeze over completely. However, using the right winterizing chemicals will help keep your pool safe. You will typically add chlorine shock, stain prevention, and algaecide before closing your pool for the winter. The clean water will keep the pool liner intact and protect it from tearing, making it easier to reopen your pool and balance the chemicals, since they were balanced before you closed it up.

How Much Do I Drain?

The standard rule is to drain below skimmer levels to allow you to clean out the plumbing system. If you have an in-ground pool, that might mean more draining. If you have an above-ground pool with a removable pump and skimmer system, you can remove it and drain enough so that there is room for expansion and contracting throughout the winter. If you drain lots of water, choose a tight pool cover so there is less risk of collecting water and debris.


The fact of the matter is that it is hard work owning a pool. It is a big commitment, but if you stay committed to doing the work and doing it correctly, you will be able to protect your investment and make everything worthwhile. Think of it this way: if you close up your pool in a rush and do not take the time to do it properly, you will have even more work to do when it is time to reopen for the summer. Take your time and you will thank yourself later.

Rising Sun Pools & Spas

For over 46 years, we’ve been the pool builders of choice for home and business owners in North Carolina. No pool company has more customers, more experience or more expertise than Rising Sun Pools. There’s no pool construction, design or renovation project that we haven’t encountered (and solved)! Contact us today!