BURST GUARD™ Guarantee -100˚F

Not using your hot tub in the winter? Keep your spa in prime condition so you can rest and relax in it easily when you’re ready to re-open it in the spring.

You’ll be back to relaxing in jet bubbled water in no time with WINTERPROOF™ Water System Antifreeze. Keep your hot tub waterlines, jets, and plumbing protected through harsh winters, and keep costly repair bills at bay.


  1. Ultimate burst protection.
  2. Use for prevention and protection.
  3. Safe for use on plastic and metal pipes.
  4. Keeps waterlines, pipes, and seals lubricated.
  5. Ready to use formula.

How to Winterize Your Spa

WINTERPROOF™ All Purpose Water System Antifreeze with BURST GUARD™ Guarantee -100˚F will help you avoid complications and costly repairs:

1 Turn off your power, remove and clean the cover.

Be safe and remember to turn off your power to your hot tub.

Your spa cover needs cleaning too! This is a great time to clean your hot tub cover with a safe cleaner and water.

2 Remove the filters.

If you’re going to clean and close your hot tub for the winter, you might as well do a thorough job of it and clear out your filters while you’re at it. Clean out your filter baskets with a safe cleaner and store them inside for the winter if you’re shutting down your hot tub for the season.

3 Drain your spa.

Use either your exterior hot tub drain (usually found along the base of the hot tub) – or if your spa doesn’t have one, you can use a submersible pump – to drain the water. First, remove the drain cap and attach a hose or piping to direct water to an area of your property that will allow it to easily flow and disperse. Once the water inside the tub is drained, leave the drain spout open.

4 Blow out the waterlines.

If your hot tub has valves on the top, unthread the valves and insert a shop vac to blow water out through the jets. Run the shopvac through each of the valves until you don’t see anymore water coming through the jets.

If your spa does not offer top valve access to the pipes, locate the pumps and loosen the unions, opening the plumbing pipes. Use a shopvac to blow water through the plumbing pipes and jets.

5 Use a shopvac to suck water out of the jets, footwell, and seats.

Even small amounts of water left behind in your spa can cause cracks, so it’s important to try to get all of the water out of it. Use a shopvac or a sump pump to suck or pump the remaining water out of the footwell and seats, while using a shopvac to blow out the remaining water in the jets. Hold the shopvac over each jet for about 15-20 seconds.

6 Add extra protection with WINTERPROOF™ Water System Antifreeze.

Use our All Purpose Water System Antifreeze, as directed on the product label.

7 Cover your spa.

Once you’re done, remember to place the cover back onto your spa for the season.

Product Specifications

Item # Unit/Case Pack UPC SCC14
35-364WPUS/13147 4 x 1 USG 056438909545 40056438909543
35-365WPUS/13148 2 x 2.5 USG 056438909552 40056438909552
35-369WPUS/13149 4 x 55 USG - -
35-369WPUS-275/13150 1 x 275 USG - -

Tips for Finding MSDS

  1. Have the item # handy before starting the MSDS search
  2. Use the link below to access our MSDS database portal
  3. Select the red SEARCH button on the left-hand side of page
  4. Type item # in the Product Code box and press search (XX-XXXX)
  5. Hover over the yellow MSDS button and select either English or French