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How to Maintain a Hot Tub
Recommended Hot Tub Care Maintenance Routine
This guide has been written with the view of making your hot tub water extremely safe, you may find
some guides online that are less stringent. However, we recommend that this guide is followed as to
make sure all risks involved with water care will be reduced to a minimum, so that you and your
family can enjoy your hot tub in safety.
Daily (before use): Time: 2 minute.
Test chlorine levels to see if they fall between 3-5 mg/l (ppm) and dose according to the
attached instructions on the Hot Tub Chorine container.
• Test Hot tub PH levels to see if they fall between 7.2 and 7.6. If not within these parameters
use Hot Tub pH Plus or Minis according to instructions.
• If water is foaming use Hot Tub Anti Foam. (TIP - Dilute no foam according to instructions
into spray bottle and spray onto surface of water [do not use bottle for any other purposes])
•
Weekly: Time: 10 minute.
•
•
Shock Hot tub with suitable oxidising agent such as Non chlorine shock or Calcium
Hypochlorite.
• Clean Filter using Hot Tub Filter Cleaner and swap with spare.
Wipe the hot tub waterline with a suitable cleaner to remove any grease or scale.
• Add a scale and stain inhibitor
• If needed add a spa clarifier to maintain crystal clear water
Periodically (Once every 2 to 3 months):
Clean hot tub cover with week solution of chlorine (3-5mg/litre)
•
Replace hot tub filters (1 year)
• Change water
Water Balance
It is important to maintain the correct water balance to create the perfect conditions for you to relax
in. We recommend that you follow the guide below in order to achieve this.
Calcium Hardness
It is important to achieve the correct level of calcium in your water, the levels of which will vary
depending on where you live and where your water supply comes from. Soft water tends to be low in
calcium and hard water tends to be higher. Every time you top up or refill your hot tub with fresh
water you need to check levels of calcium.
The ideal calcium hardness level for a hot tub is between 100 -200mg/lIf the level in your hot tub is
below this it could lead to corrosion damage. If you do find the level is low, then use a suitable Cal
Hardener to bring it up to the correct level. If the level in your hot tub is above this it can lead to the
water appearing cloudy. As a result, calcium can be deposited on the tub shell, heater element, filter
cartridge element and the pipe work within. To reduce this use Hot Tub stain and scale inhibitor to
stop stain and scale forming.
Total Alkalinity
This also depends on your water source and should be checked every time fresh water is added. The
ideal Total Alkalinity for your hot tub is between 125 – 150mg/l If it stays between this it will prevent
the pH of the water fluctuating. If the level falls below the recommend amount the water can become
corrosive causing damage to the hot tub equipment. This being the case, we suggest using Hot Tub
pH increase to raise levels.
If the level is too high, the water can become poor in clarity and scale will form. To reduce this use
Hot Tubs pH Minus.
pH Levels
It is essential you regularly check the pH of your hot tub water using Hot Tub Test Strips. The ideal
pH range is between 7.4 -7.6, this is slightly alkaline which protects the hot tub and equipment. It
also provides the most comfortable condition for hot tub users and has a good sanitising efficiency. If
the pH level is below 7.4 use Hot Tub pH Increase to raise the level and if the pH level is above 7.6
use Hot Tubs pH decrease to reduce the level.
Sanitising
Sanitising of your hot tubs water is vital to kill bacteria and prevent algae growth. Levels should be
checked regularly using Hot Tub Test Strips. You can use either Chlorine or Bromine to adjust the
levels. Most people use Chlorine, preferring the smell to Bromine.
Bromine
Using Hot Tubs Bromine is a very effective hot tub sanitizer. It comes in tablet forms making it easy
to apply to the water.
The ideal Bromine level is between 3 – 6mg/l
Chlorine
Using Hot Tubs Chlorine is another effective hot tub sanitizer. It comes in granule forms which
dissolve very quickly in the hot tubs.
The ideal Chlorine level is between 3 – 5mg/l
Oxidising
We recommend that you oxidise your hot tubs monthly using Hot Tub Non Chlorine Shock. This
destroys odours and other undesirable additions such as perspiration, cosmetics and body oils.
By doing this monthly it improves the comfort and hygiene for hot tubs users.
Hot Tub Speciality Products
Other products also help keep your hot tub clean, clear and enhance your bathing pleasure.
Control of Foam - Due to the circulation and aeration of hot tub water, foam can appear on the
water surface which looks unsightly; this is caused by oils and lotions within the water. To reduce the
foam use Hot Tub No Foam regularly to prevent and control foaming. If the problem of foam
continues after using Hot Tub No Foam we recommend that you drain and refill with fresh water.
Cleaning your Hot Tub - At the waterline, grease and rubbish can build up that creates a line
around the tub which provides an ideal ground for bacteria and algae to breed. To remove these lines
easily and prevent them appearing use Hot Tub Water Line cleaning product weekly.
Cleaning the Filter Cartridge - You will be able to tell when the filter needs cleaning as the
circulation within the hot tub will be reduced and the water cleanliness will change. To avoid the
inconvenience of the filter not working we recommend that it should be cleaned at fortnightly
intervals or more if you use your hot tub heavily. Hot Tub Cartridge Cleaner helps clean and restores
filters to their full efficiency.
Fragrances
It always a nice touch to add a fragrance to your hot tub water but never use bath fragrance as this
will create foam which is not good for your tub. Only ever use Hot Tub Fragrances that have been
designed for use in Hot Tubs. Our Online shop sells a wide range of fragrance.
Hot Tub & Chemical Safety Tips
• Never allows the water temperature to exceed 40°C.
• Do not Drink Alcoholic beverages before or during using the hot tub.
• Before children use the hot tub ensure water temperature does not exceed 30°C.
• If you are pregnant, suffer from high blood pressure, any cardiovascular condition or on medication
always consult your doctor before using the hot tub.
• Keep all chemical containers sealed and out of reach of children.
• Always read and follow the instructions on the labels.
• NEVER mix Chemicals.
• Always add chemical into water, never add chemicals before water.
• Accurately measure chemicals.
• Store chemicals in a cool and dry place.
• Never keep chemical in direct sunlight.
• Always handle chemicals with great care.
Hot Tub Chemicals Required
Spa Chlorine
PH Increase
PH Decrease
Stain and Scale Inhibitor
Spa Clarifier
Filter Cleaner
Anti Foam
Chlorine Test Strips
To clean the side of the spa use methylated spirits