How to Balance Your Spa Chemicals

Spa pools and hot tubs require chemicals to keep their water clear, safe, and healthy. These chemicals help balance pH, alkalinity, and hardness levels in the water.

Spa chemicals also eliminate bacteria and other germs that could make you ill. There are various spa chemicals available, such as sanitizers, algaecides and enzymes.


Algaecide is a type of pool chemical that can kill algae or prevent them from blooming. It may also be combined with other sanitizers to maintain pH balance and keep your pool looking great.

Algaecides work by discharging positive ions into the water that combine with negatively charged particles of algae to form a poisonous molecule. These charged ions attach themselves to the algae cell wall and attack its nucleus, effectively eliminating blooms if applied correctly and at the right amount.

Copper-based algaecides are the most popular, though silver and other options exist as well. While less toxic than their copper-based counterparts, these can stain hard water and negatively affect your pool’s pH if not used carefully.

Algaecide can be an effective tool in the fight against green and blue-green algae that can mar your swimming pool’s aesthetic and ruin your fun. You can apply a small amount and let it work overnight, or apply more liberally over several days or weeks for maximum effect.

If your spa is suffering from chlorine-resistant green algae such as mustard or black algae, an algaecide may be necessary to eliminate it. However, it should only be used in combination with high quality chlorine or other sanitizer, not as a replacement.

The ideal algaecide for your spa depends on a few factors, including what works best within your needs and budget. Make sure the product you use is easy to apply onto the water and doesn’t cause eye or skin irritation or staining.

If you’re not sure which algaecide is ideal for your pool, speak to a spa professional and get their advice. They can determine the correct type of chemicals needed, whether you are looking for hot tub startup chemicals or a targeted solution. Experts can also offer guidance on and how often these chemicals should be applied.


Enzymes break down organic pollutants to a more manageable size so chlorine or bromine can more effectively destroy them. This improves water chemistry, making it easier for sanitizers to keep bacteria at bay and reduces the risk of illness.

They also work to eliminate oils that cause scum lines and cloudy water, helping prevent clogged filters and the need for filter maintenance while still allowing your sanitizer to function more efficiently.

Enzymes have the primary benefit of helping maintain sanitizer levels and the water chemistry in your spa’s water. This is essential since bather comfort requires that sanitizer be kept within prescribed ranges, since it quickly depletes with bather usage. You can click the link: for more information about enzymes.

Water chemistry must be balanced and sanitizer concentration adjusted regularly.

Enzymes have another advantage in that they are highly effective at eliminating biofilms that accumulate on your spa’s pipes. These films, composed of oils and organic wastes, feed bacteria by providing food sources and hiding places for them.

Regularly clearing away biofilms prevents the buildup of sludge that requires flushing out the pipes, allowing you to go longer without draining your spa.

Enzymes can be especially beneficial when it comes to reducing the amount of chemicals necessary in your hot tub’s water to maintain proper chemistry. They also contribute to providing a more natural hot water experience for you and your guests.

Enzymes can also help eliminate oily residues from bather waste and cosmetics, improving your waterline area’s appearance as well as leading to clear, odorless water in your hot tub.

Enzymes can also help you avoid having to regularly drain your spa’s water to eliminate chemicals left behind by a traditional chemical system. On average, conventional chemical systems require drains every 3 months while enzymes typically last up to one year in most cases.

pH Balancer

When maintaining your spa’s water, pH level is an essential consideration. Excess acidity can lead to cloudy or scaled surfaces for bathers and make it difficult for sanitizers to work effectively, leaving bathers vulnerable to harmful bacteria and viruses.

For optimal hot tub performance, a pH level between 7.2 and 7.8 is ideal. Anything lower indicates your water is acidic and needs to be adjusted accordingly. You can click here for more information.

Often, this can be achieved by adding pH balancers that either increase or decrease pH levels. These products come in various concentrations and should be added gradually until your pH falls within desired range.

To use pH balancer effectively, follow the manufacturer’s instructions carefully. Once you know how much of each chemical to add, pour the correct amount into your hot tub’s water and wait 15 minutes before testing the results.

For instance, if your water has low pH and high total alkalinity (TA), it could take several days to restore both pH and TA to their correct ranges. To check these values, use test strips.

When altering the pH and alkalinity in your spa, it’s essential to start with total alkalinity first. This acts as the “gatekeeper” for all other levels and will determine whether additional adjustments are needed.

It is important to keep your spa well-maintained in order to ensure you and your family are able to enjoy it safely and comfortably.