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How to Drain, Clean & Re-Fill Your Sundance Hot Tub

Draining, cleaning and re-filling your Sundance hot tub 3 or 4 times a year will ensure you are soaking in clean, clear water and minimize the amount of time and effort spent on keeping your Sundance hot tub water in great shape. Here are some tips for you to make the process as quick and easy as possible!

Before Draining Your Sundance Hot Tub

Before you begin draining your Sundance hot tub water, It is a good idea to use Whirlpool Rinse to clean and degrease the internal plumbing and help prevent the build up of calcium which can have a negative effect on the performance of your hot tub. Here is how to get the best out of your Whirlpool Rinse:

  • Remove your hot tub's filters.
  • Remove your hot tub's head rests.
  • While the water is still hot, add 250ML (half a bottle) of Whirlpool Rinse.
  • Turn your hot tub's waterfall on.
  • If your hot tub has Diverter Valves, turn them to the centre position.
  • If your hot tub has air controls, turn them to the off position.
  • Run Jet pumps for 2 hours (make sure all jets are running and have not been manually turned off). You will need to turn the jets back on every 20 minutes.
  • You are ready to begin draining your Sundance Hot Tub.

Draining your Sundance Hot Tub

Once you are ready to drain your Sundance hot tub, switch the power off at the GFCI breaker.

All Sundance hot tubs are equipped with a drain to remove the water.

680, 780 & Select Series hot tubs have a gravity drain. Simply remove the front panel and attach your garden hose to the drain and your hot tub will begin to empty.

880 & 980 Series hot tubs come equipped with the built-in Quick Drain feature, which comes with a thicker hose for faster drainage. Just attach the hose and turn the gate valve to begin draining your water.

In addition to these drains, there are other options available to you.

The Quick Drain, Available at all 5 locations of The Sundance Spa Store (Burlington, Mississauga, Oakville, St. Catharines & Vaughan) is up to 5 times faster than the gravity drain, removing 10-12 gallons of water per minute and there is no extension cord required!

In addition to saving time, it also vacuums the floor of your Sundance hot tub as it drains, removing leaves, grit, sand and any other debris.

You can also use a small submersible pump that can be purchased at most hardware stores. These are particularly handy during the colder months. Keep in mind that submersible pumps do not vaccum the bottom of your hot tub as the Quick Drain's do.

There will always be a little water left in the foot well of your Sundance hot tub. This can either be removed with a Shop-Vac or simply left in place as it will have no impact on the fresh new water you are adding to your hot tub.

Cleaning Your Sundance Hot Tub

Now that your Sundance hot tub is empty, you may want to give it a quick clean. Whilst it is tempting to use your favorite cleaning products on your hot tub, All you actually need is water and a little bit of vinegar. Using harsh cleaning products will result in foamy water when you re-fill your hot tub. A product such as The Tub Scrubber can be used to remove any residual waterline build up.

Draining your Sundance hot tub also gives you a good opportunity to give your hot tub filters a clean (or replace your Sundance Micro Clean Filters). Using a strong setting on your hose nozzle (but not a pressure washer), Spray down your paper pleated hot tub filter to wash out any debris collected inside the filter.

Occasionally Soaking your Sundance hot tub filters in a Cartridge Cleaner, or spraying on some AquaMagic will help break down any organic matter trapped in the filter pleats and provide the filters with a deep cleanse.

Sundance Spas Micro-Clean filters used on 780, Select, 880 & 980 models should not be sprayed or washed like a standard pleated filter, as they are maintenance free!

Giving your Sundance hot tub cover a clean, and treating it with a UV Protectant, such as Restore is also advisable while you are draining and cleaning the hot tub to keep the vinyl of the cover from drying out and shrinking.

Re-filling Your Sundance Hot Tub

When adding new water to your Sundance hot tub, Put your hose into the filter well so that it runs through the pipes as it fills up, This will help prevent air locks upon re-start. Once your hot tub is filled, You can turn the power back on so it can begin heating up (Do not power up the hot tub until the hose has been removed). 

Now your Sundance hot tub is full, It’s time to test and treat your water so that you can enjoy it as soon as it heats up to your desired temperature.

While the water is still cold, you should add approx. 100ML of Prevent II  to eliminate and prevent staining and scale formation.

Once the water is hot (wait at least 5 hours) you should use a test strip to check your water is balanced correctly. After making any adjustments to the Alkalinity or pH (in that order) that are needed, you should add 1 Capful (30g) of Sun-Boom to the water, and boom! You’re ready to get your hot tub party on!

Happy Tubbin’!

The Sundance Spa Store Team.

For More on Water Care, Click Here.

For More on Filter Maintenance, Click Here.

The Sundance Spa Store is a provider of high quality Sundance Hot Tubs and Finnleo Saunas who service the GTA and Niagara Region.

We deliver and service our products in cities such as Toronto, Brampton, Georgetown, Milton, Orangeville, Waterdown, Niagara Falls, Welland and Niagara On The Lake and more!