Last Updated: November 14, 2025.
HOT TUB WINTERIZATION
Won't be using your spa at all during the winter season? Winterizing is important to avoid costly repairs. Common problems that may arise from leaving water in your hot tub during the winter include moisture damage, and more costly, cracked pipes. This is because of water’s unique property of expanding when frozen.
You can either winterize your spa yourself, or for a more convenient option - book a winterization service with our Mr.Spa team! We’ll flush out your spa, clean it up, and winterize it for you!
In the case that you choose to do it yourself, follow these steps:
YOU WILL NEED:
- Garden Hose and Drain Valve Hose Adapter or Submersible Pump (for draining)
- Wrench or Oil Filter Wrench
- Drill and a bit
- Shop Vacuum (also referred to as a wet/dry vacuum)
- Tub Scrub Sponge
- Spa Flush
1. It is recommended that you drain and clean your spa 2 to 3 times a year to avoid excessive scum buildup and dirty water. To avoid hard-to-remove gunk and bacteria from sticking to the tub, use SPA FLUSH to clean it out and drain the spa of all water using a garden hose or submersible pump. Click HERE for a quick read on how to clean your spa.
2. Shut off the power to the spa.
3. Remove your filters, and use the shop vacuum to clear the lines from the ports. Also open up your air controls and suck up water from there.
4. Remove one of the panels to access your pump. Refer to your Owner’s Manual if you are unsure which side the pump is on.
5. Take your pipe wrench and loosen the top fitting (referred to as a union) from your pump and pack. Use your vacuum or similar product of choice (ie. leaf blower) to blow out any additional water from the disconnected lines. Then, connect the vacuum to the pump to suck up any remaining water. We recommend leaving the pump and pack disconnected to relieve any pressure and allow for water expansion. Screw the panel back on.
6. Using a shop vacuum suction water from each jet. Remove any remaining water from the tub using a sponge or towel. Make sure the Drain Valve is left open (click HERE to see how to).
7. Cover all open pipes with screen mesh to prevent debris from entering the system.
8. Close your cover, ensuring it is pushed down completely and the straps are locked. For added protection, cover the spa with a Cover Guard.
By following these steps, you can ensure a stress-free experience when opening your spa back up in the Spring.
PLEASE NOTE: Damage from moisture, condensation, and/or any other problems arising from winterizing your spa are not covered under warranty.
Questions? Contact us at 1-877-909-7727 or serviceca@canadianspacompany.com, or log a support ticket, or refer to our Support Page solutions.