Spa Antifreeze

BURST GUARD™ Guarantee -50˚C

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.

Trust Winterproof™

  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.

Made for Canadian winters

Before you start Winterizing, read this


If you don’t use your hot tub in the winter, then winterizing it properly is crucial. WINTERPROOF™ with BURST GUARD™ -50˚C Guarantee provides up to 1 year protection from the date of purchase against any bursting and cracking up to -50˚C in all your spa pipes and waterlines, when used as per the directions of the hot tub manufacturer and the directions on the label. Follow these simple steps to keep your spa in great shape so you can soak in the bubbles in the warmer weather!

Since every hot tub is different, be sure to follow your owner’s manual before starting the winterization process. Also, remember that some hot tubs may have extra components which may require additional steps to winterize. Follow the steps below that apply to your spa.

Before we begin, it’s important that you know not to dilute the WINTERPROOF™ All Purpose Water System Antifreeze product. Any water remaining in the lines and drains will cause the product to expand and damage waterlines. Bring product to room temperature before using.

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 water system COMPLETELY.

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 vacuum to blow water out through the jets. Run the shop vacuum 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 shop vacuum to blow water through the plumbing pipes and jets.

5 Use a shop vacuum 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 shop vacuum or a sump pump to suck or pump the remaining water out of the footwell and seats, while using a shop vacuum to blow out the remaining water in the jets. Hold the shop vacuum over each jet for about 15-20 seconds.

6 Pour product into freshwater lines through the pressurization system or by removing faucet stems.

Use our WINTERPROOF™ Water System Antifreeze, as directed on the product label. Add antifreeze until colour is evident at drain points. Make sure all branch pipes are treated.

7 Cover your spa.

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


Under certain circumstances, product may appear slushy or frozen. However, even in extreme temperatures up to -50°C, WINTERPROOF™ All Purpose Water System Antifreeze is guaranteed to prevent pipes, waterlines and plumbing system from bursting when used as per the directions on the label.

Pink coloured dye aids in leak detection.


DISPOSAL OF USED WATER SYSTEM ANTIFREEZE: Observe local laws and regulations

In the event of any inconsistency between the directions on the label and this step-by-step guide, the directions on the label shall prevail.

*The information above and contained in this document is intended to provide general guidelines on winterizing and is provided for informational purposes only. Recochem Inc. assumes no responsibility for the accuracy of the information contained herein and disclaims any liability for the omissions, errors, or outcome of any project. It is the responsibility of the reader to ensure compliance with all applicable laws, rules, codes, and regulations for a project. The reader must always take proper safety precautions and exercise caution when taking on any project. If there is any question or doubt in regards to any element of a project, please consult a licensed professional.

Product Specifications

Item # Unit/Case Pack UPC SCC14
35-364WP 3.78 L O56438907268 40056438907266
35-365WP 9.46 L O56438907275 50056438907270
35-368WP 18.9 L 056438909538 NA


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