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To test for these values use a reliable testing kit and record the values in a log book. This way you can maintain an overview of the manner in which

the water is treated and used. In most situations we recommend replacing the water every three months if the spa is in standby.

If the spa is used more often, the water should be changed more regularly.

Hard water due to too high calcium levels in the water can damage your spa and/or certain parts. Soft water can have a negative inﬂuence

on your water quality. The quality of tap water needs to be within an acceptable range, at a calcium hardness of 150 ppm to 250 ppm.

Too high calcium levels will void your 4seasonsspa warranty. Contact your spa dealer to ensure your water is within the acceptable

calcium level range.

Never use chlorine tablets (tri-chlorine). The only form of chlorine allowed is in powder form (di-chlorine). If you do use chlorine tablets, this

will void the warranty on the spa completely and entirely.

For optimum performance durability and to prevent problems with your spa a standard maintenance regime is required. Your spa dealer will explain

everything to you during installation. Herewith are important instructions to follow carefully.

• Before ﬁlling your spa for the ﬁrst time your dealer needs to check that the water is not too hard*. When water is too hard the spa needs to be

balanced with a water softener. Calcium hardness of water needs to be in a range between 120 and 250 ppm (parts per million). Water hardness can

also be measured in terms of German Hardness expressed as °dH and your spa water needs to be in between 7 and 13 °dH. If the water is too hard

or soft it will damage your pumps, jets and heater and will invalidate your warranty.

• Twice weekly water maintenance is required. Checking pH and chlorine are the most important values (see chapter 6 for required pH and chlorine

values).

• Weekly clean the ﬁlter cartridge by rinsing it with a powerful water jet (a garden hose not a high pressure washer).

• Once every 2 or 3 months clean and grease the diverters to prevent dehydration and lime / calciﬁcation. When your diverters are turning smoothly

7 Important things to know & do to maintain your spa

6 Watertreatment