Get The Most From Your Hot Tub

Water care and spa maintenance will ensure you experience many years of pleasure from your hot tub. At Coast Spas Lifestyles we carry a wide selection of hot tub and pool products to protect your investment for years to come. Don’t know what you need? Come in today for a FREE water test. Our Coast Spas Lifestyles professional water lab is there to provide you with a free computer water analysis. Visit us today for all your pool and hot tub maintenance needs.


Sanitation refers to the control of infectious organisms (bacteria, virus, etc.) and the removal of excess organics (perspiration, urine, body oils). Bromine and Chlorine are the only two sanitizers that are approved by Health Canada for use in hot tubs.

bromine, bromine pucks


Bromine tablets are the most commonly used sanitizer in hot tubs that can be dispensed through a floating dispenser. The dispenser can be adjusted to get the right level of Bromine for your spa. This system is a two part system. The tablets do not work on their own and must be activated by an oxidizer. We recommend Coast Spas Shock or Aqua Brite Plus to activate the sanitizer. The amount of shock required is relevant to the amount of existing bromine in the water and the frequency of use of the hot tub. A spa should be maintained at a bromine level of 3-5ppm.

chlorine, chlorine pucks


Chlorine tablets are an alternate sanitizer to Bromine tablets. This is also a two part system. The tablets do not work on their own and must be activated by an oxidizer.



Coast Spas Shock and Aqua Brite Plus are chlorine free oxidizers that activate the bromine or chlorine tablets, releasing the sanitizer into the water. This product also oxidizes waste that can accumulate in hot tub water. Whether using Bromine or Chlorine in your spa, periodic shock treatments are required. Shock your spa after heavy bather use or weekly. DURING HEAVY USAGE YOUR HOT TUB MAY REQUIRE DAILY SHOCK TREATMENT! Add 2 TBSP of Coast Spas Shock or Aqua Brite Plus per 1000L of water

Water Balance

Water balance has four factors: pH, Total Alkalinity, Calcium Hardness, and Total Dissolved Solids (TDS). Water balance affects the safety of your equipment as well as the appearance of the water. pH is the most critical, but the Total Alkalinity and Calcium Hardness levels must also be considered. The TDS level of your spa must remain below 1500ppm to easily maintain your water balance. Visit Coast Spas Lifestyles waterlab to test your TDS level for free.

ph plus, ph down


pH is the level of acid or base in the water. pH levels should be monitored frequently. When pH is low it will affect bather comfort. High pH levels will render sanitizers ineffective and will cause scaling on the equipment. Maintain pH between 7.2 and 7.8.

To raise pH:

Once alkalinity level is balanced, if your pH still tets low, pre-dissolve 1 TBSP of Coast Spas pH Up and add to hot tub water. Retest water in 1 hour. If necessary add 1/2 TBSP doses of pH Up until testing indicates that an ideal level has been reached.

To lower pH:

Once alkalinity level is balanced and only if your pH level is high, pre-dissolve 1 TBSP of Coast Spas pH Down and add to hot tub water. Retest water in 1 hour. If necessary add 1/2 TBSP doses of pH Down until an ideal level has been reached.

alkalinity, alkalinity booster

Total Alkalinity

A balanced alkalinity level is necessary to stop pH levels from fluctuating. If your alkalinity level is low, damage to your hot tub components may occur. A low alkalinity level can also alter the effectiveness of Bromine or Chlorine. The alkalinity level must be balanced before adjusting pH.

To raise total alkalinity:

Pre-dissolve 3-5 TBSP of Coast Spas Alkalinity Booster and retest water in one hour. Add no more than 5 TBSP at one time. On a fresh fill you may need as many as 15-20 TBSP of Alkalinity Booster to reach a balance level. An in store water test is recommended.

To lower total alkalinity:

Pre-dissolve 1 TBSP of Coast Spas pH Down and add to hot tub water. Retest water in one hour. Adjust if necessary.

calcium, calcium booster

Calcium Hardness

Calcium hardness is the measure of calcium in the water. Low calcium levels can lead to corrosion of hot tub components. It is important to have your calcium levels tested on a regular basis. It is necessary to pre-dissolve calcium booster prior to adding it to the hot tub water. Calcium Booster is easiest to dissolve using cold water. Calcium that is not pre-dissolved can cause scaling and cloudy water.

To raise calcium hardness:

Pre-dissolve 5 TBSP of Coast Spas Calcium Booster in cold water and add to hot tub. Retest in 24 hours. Up to 20 TBSP of Calcium Booster may be necessary to reach ideal levels. However, before adding calcium to your hot tub have your hot tub water tested by your water care specialist at Coast Spas Lifestyles.

To lower calcium hardness:

Drain some of the water from your hot tub to quickly dilute a high calcium level.

Test Kit Guidelines

If your Chlorine reading is above 3.0 or your Bromine reading is above 6.0, you may obtain a false result when testing your pH and alkalinity levels. If this is the case, lower Chlorine or Bromine levels. To lower the levels, remove your dispenser and run your jets for 1 hour cycles with the cover off of your hot tub until you reach an ideal Chlorine or Bromine level. Your Chlorine or Bromine level should be at the ideal level before you perform any other tests.

6.5 8.2
Follow instructions for high Chlorine or Bromine as above. Pre-dissolve and add 2 TBSP pH down. Retest in 1 hour.
3.5 7.8
Do not adjust Chlorine or Bromine level. Do not adjust pH level.
2.0 7.6
Ideal only if you have an ozonator in your hot tub. If not add 1 TBSP of shock per 1000L of water. Do not adjust pH level.
1.0 7.2
Check dispenser for tablets and add 1 TBSP of shock per 1000L of water. Do not adjust pH level.
0.5 or clear 6.8
No Bromine or Chlorine! DO NOT USE HOT TUB! Check dispenser for tablets, add 2 TBSP of shock per 1000L of water. Add 5 TBSP of Alkalinity Booster per hour until an ideal level is reached. If alkalinity is already balanced add 1 TBSP of pH Up at a time until an ideal level is reached

Water Maintenance

clear, coast clear

Coast Spas Clear

Coast Clear is an all natural clarifier. It helps to remove excess minerals from your hot tub water and break down oils. It can also eliminate scum build, which in turn will maximize the filter's ability to clean the water.

Weekly dosage:

Add 2 TBSP of Coast Clear per 1000L of water to your hot tub once a week.

stain and scale

Coast Spas Stain & Scale

Stain & Scale is a product used to prevent excessive mineral (iron and copper) build up in your water. It can also prevent potentially harmful calcium scaling that may accumulate on hot tub walls and componenst.

Weekly dosage:

Add 2 TBSP of Coast Stain & Scale per 1000L of water to your hot tub once a week.


Coast Spas Defoamer

Defoamer is an effective and safe way to immediately eliminate excess foam in your water. Defoamer should only be used as a 'quick fix' and will not prevent the reoccurrence of foam. Foam is usually a result of improper water balance or foreign contaminents in your water, such as detergents and soaps. Bring your water to your water care specialist at Coast Spas Lifestyles to be analyzed.

To use:

Dilute Defoamer: one part Coast Spas Defoamer to one part water. Transfer into a spray bottle and spray directly onto foam.

CAUTION: More is not better! Minimum amounts of Defoamer will do the job. Excessive use will cause cloudiness and an oily film in your hot tub water.

filter free, filter cleaner, hot tub filter cleaner

Coast Spas Filter Free

Filter Free is a product used for deep cleaning of the filter cartridge. It is specifically designed to breakdown the buildup of oils and debris that the filter has trapped. Your filter cartridge should be rinsed weekly with a garden hose to remove loose debris. At least once a month your filter cartridge should be soaked in Coast Spas Filter Free.

To use:

Dilute 1 Cup of Filter Free into 19L of water. Soak the filter in this solution for 8-12 hours. Rinse the filter thoroughly. Filter soaking canisters are available at Coast Spas Lifestyles.

CAUTION: Do not leave the filter in the solution for more than 12 hours. This will cause premature aging of the filter. Filter Free can cause extreme foaming in your hot tub if the filter is not rinsed thoroughly prior to use.


Cloudy Water

Suspended particulate matter can cause cloudy water. To keep the water sparkling clear, treat weekly with Coast Spas Clear with the system running.

Other Possible Causes

Build-Up of organic contaminants Check Bromine or Chlorine level and adjust accordingly.
Total Alkalinity or pH too high: Check pH and Alkalinity levels and adjust if necessary.
Hardness to high: Add fresh water to your hot tub and add Coast Spas Stain & Scale.
High TDS: Empty your hot tub and refill (have TDS tested at Coast Spas Lifestyles waterlab).
Poor filtration: Clean filter cartridge with Coast Spas Filter Free.


Foaming is caused by shampoo and soap residues, hair sprays, cleansers and even "soft" water (low total alkalinity and calcium hardness). If foaming occurs, treat by squirting Coast Spas Defoamer over the surface of the water.

Coloured Water

If the water takes on a green or brown tint, it is probably due to metal (copper or iron) in the water. To remove colour and prevent staining , treat with recommended dose of Coast Stain & Scale.

Other Possible Causes: Algae Adjust pH to 7.2-7.8

Scale Formation

If white, chalky or hard residue forms on the sides of the spa , it is due to calcium carbonate scale formation. Also treat with Coast Spas Stain & Scale and check your water balance.

Other Possible Causes: pH too high Check that your floating dispenser has Bromine or Chlorine pucks and add shock to your hot tub water.

Other Possible Causes: Alkalinity too high Adjust alkalinity to 100-150 ppm by adding Coast Spas pH down

Poor Filtration

Depending on usage, your spa should be drained approximately every 3 months and the filter should be cleaned once a month.

Other Possible Causes: Filter cartridge clogged Remove and clean with Coast Spas Filter Free

Other Possible Causes: Pump not operating properly Have a Coast Spas service technician examine the system.

Other Possible Causes: Skimmer basket clogged Remove hair and other debris from skimmer basket on a regular basis.