Every once in a while you may have to drain your pool or spa - in part or fully with the exception of vinyl liner pool. Unfortunately, there isn't any way to avoid this. Eventually, the water will reach a point where it can't get clean by the regular routine, despite all your efforts. Fortunately, it does not happen often. How often you drain your pool or spa depends on usage and how the water's been behaving. In general, a pool may not need to be drained for up to three years, depending on the pool's use and location. In the case of spas, it is recommended that you drain all the water every 6 to 8 weeks or so. The procedure is simple but will vary depending on the type of pool or spa you have. Once you've removed the old water you should take the opportunity to scrub the walls with a recommended cleaner before you refill the vessel. While draining allows you to give the pool and spa walls a good cleaning, it does not guarantee that they'll stay clean for an extended period of time. There is much more at play than just scrubbing and adding fresh water. In fact, if you just add the new water without chemically treating it, you run the risk of exposing your pool or spa equipment to imbalanced and potentially damaging water. You may also unintentionally encourage bacteria, algae and other unwelcome guests to take hold in your pool or spa. So, when adding any large amounts of fill water to your pool or spa, always make sure that you follow the recommended start-up procedures.

Note: Do not completely drain a vinyl liner pool. Consult your pool professional first.

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