This is an instructional guide which will help determine the parts required if water is leaking from your portable spa.


The leak could be due to a hole or faulty part in the tub, an improper/faulty connection between the tub and the Portable Control Unit (PCU), or a fault in the PCU.

NOTE: If water appears to be leaking from the bottom of your PCU, the problem could still be within the tub (faulty tub check valve). Please perform the test below to confirm.


  1. Fill the spa to the minimum water level line or at least above the top Discharge Port inside the tub.
  2. Connect the 3 threaded caps to the inlets and outlet within the spa.*
  3. Disconnect the PCU from the 3 connector hoses (leave the connector hoses attached to the spa).
  4. Move the PCU away from the tub to clearly separate them. 
  5. Mark the current water level within the spa to measure the potential water loss (a piece of tape on the liner works great).
  6. Place a bowl or container underneath the Blower Connector Hose (bottom left connector hose on the tub marked by bubble symbol). 
  7. Let the spa sit unused for 24 hours or until the water stops leaking.**

*Ensure that the rubber gaskets are properly seated in the threaded caps before applying to the ports.

**The location of the water level when it stops leaking will indicate the location of the leak.

Once the time has elapsed, check the water level. 
If the water level has not dropped then the issue is likely with the PCU/connection to the PCU. 
If the level has dropped, please unzip the liner to feel for moisture in-between the liner/around the tub (you can unzip the entire tub without having water spill out) and note the exact location if found.

If water has collected in the bowl beneath the blower connection, this is a case of a faulty tub check valve in the blower port (see below). 

Grand Rapids shown, other spa models have check valve further inside spa walls.

Please inspect this valve for any debris that may be caught.
Anything trapped in the valve (leaves, twigs, etc.) would prevent it from creating a seal and allow water to flow through the blower connection into the PCU.

To proceed after you have performed the test, please provide Customer Service with clear pictures and/or video footage of the results.