How Long To Soak Filter In Muriatic Acid?


When cleaning a hot tub filter with muriatic acid, it should soak anywhere from 10 to 30 minutes. If using pur muriatic acid to clean a filter, it should first be diluted.

Before being suitable for use, the solution should consist of 1 part muriatic acid to 20 parts water. When using, the filter should be placed in a bucket containing the mixture of muriatic acid and water where it should be left to sit for 10 to 15 minutes.

If the filter does not completely submerge in the mixture, it should then be flipped over and left to sit for another 10 to 15 minutes in order for the entire filter to be thoroughly cleaned. 

How do you clean a hot tub filter with muriatic acid?

In order to use muriatic acid to clean a hot tub filter, the acid should first be diluted with water. The mixture should contain 1 part muriatic acid to 20 parts water.

Those involved in the cleaning process should adorn gloves and safety goggles, and rinse the filter with a hose. Then, it should be left in the muriatic acid and water mixture for 10 to 15 minutes.

If the filter is not completely submerged, it should then be flipped over and left to soak for another 10 to 15 minutes. After this period, the filter should be removed and thoroughly rinsed with water before being returned to the hot tub. 

How long does it take for muriatic acid to neutralize?

The amount of time it takes for muriatic acid to neutralize largely depends on the amount of muriatic being used. In order to neutralize muriatic acid, baking soda must be mixed with water.

It is important to leave some of the baking soda visible at the bottom. Then, the acid should be slowly added to the mixture. This combination will create a chemical reaction and cause the mixture to fizz.

When the fizzing stops, the muriatic acid has become neutralized and can carefully be disposed of. Remember, the more muriatic being used, the longer the process will take.

However, the neutralization is a fairly quick process and typically does not take more than a minute or two. If the fizzing persists, more baking soda should be added to the mixture. 

Can you use a pressure washer to clean hot tub filters?

Pressure washers should not be used to clean hot tub filters. The force of water will be too strong and will not be effective, or even worse it could damage the hot tub filters.

Instead, hot tub filters should be cleaned with a common garden hose or a sink faucet. In some cases when a filter is exceptionally dirty, it is best to let it soak in a bucket or container of cleaning solution before being rinsed. Whatever method is used, it is important to remember to be gentle with the filters in order not to tear or rip the lining.

Why do I have to clean my hot tub filter so often?

The climate in which a hot tub is used and the frequency of use are the primary contributors to the frequency at which hot tubs should be cleaned.

For instance, the hotter the climate is and the more frequently a hot tub is used, the more it will need to be cleaned as there are more opportunities for dirt and grime to build.

Warm climates create ample opportunities for bacteria to thrive, and bugs may be more prevalent. In addition, the more a hot tub is used, the more it is exposed to dirt, body lotions, and foreign contaminants that may be on users. All of these factors contribute to filters becoming dirty very quickly

How often should a hot tub filter be cleaned?

Generally, it is best for owners to create and stick to a regular maintenance routine when it comes to cleaning a hot tub’s filters.

  • Filters should be lightly rinsed roughly every 2 weeks. This does not necessitate soap or cleaning solutions, but the nooks and crannies of the filter should be well rinsed.
  • Next, the filters should be thoroughly cleaned about every 3 months at the same time the hot tub’s water is replaced. This step involves thoroughly soaking filters in a cleaning solution, often overnight, and rinsing them before they are returned to the hot tub.
  • Finally, a hot tub’s filter should be replaced every year regardless of how often or how well it is cleaned.

Editorial Staff

I'm Adnan Sabanovic, the guy behind Hot Tubs Report. I've had a chance to enjoy hot tubs last few years and have really become interested in owning one of them. Nearly every weekend you'll find me spending time with my family or playing sports. If I am not doing that then I'm here writing about tubs on Hot Tubs Report. This blog is a research for my first hot tub which I decided to document and share publically so others can benefit from it as well.

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