How to prevent and fix E3 and other errors on WaveSpa and various models of hot tub pumps

EASY-SCALE™  Installation Instructions

for Wave Spa / Cosy Spa / Avenli / Studio / Halo

Fitting kits also available for other makes should you change your tub.

Included with your EASY-SCALE™  kit are 3 screw-on caps, 2 fittings with pipes pre-assembled, a 4” piece of black pipe with a 90° threaded bend and a sachet of Oust (or similar) descaling solution.

Oust not supplied with non-UK orders due to shipping restrictions).

Always rinse your EASY-SCALE™ thoroughly with clean fresh water before  and after use.

Descaling should always be done on a well drained surface such as a lawn to ensure no staining occurs.

We recommend OUST descaling solution. Always use a suitable descaling solution or tablets and follow the manufacturer’s safety instructions.

1. Put the kettle on. Make a cuppa and read these instructions. Whilst you’re at it, fill a jug with some very warm (not boiling) water and pop the 2 preassembled fittings / pipes in there. It makes them malleable and easier to push into the pipes when descaling.

2. Switch off pump. Cap off the inlet and outlet on the inside of the tub. Remove pump from the tub; unscrew all 3 pipes between the pump and the tub.

3. Remove pipes from the jug of water.  Insert the pipes into the bottom left and top right pipes of the pump, using a pushing / twisting action.  Screw the 4” piece of black pipe with 90° threaded bend to the top fitting.

4. Attach your EASY-SCALE™  to the pump; Insert the black 4” piece of black pipe into the top of the descaler whilst offering up the bottom fittings.  Tighten hose barb onto the bottom fitting of the EASY-SCALE™ . Screw on hand tight only.

5. Make sure all fittings including caps are tightened, hand tight only. DO NOT OVERTIGHTEN OR THIS WILL DAMAGE THE THREADS ON THE FITTINGS AND / OR YOUR EASY-SCALE™ .

6. Fill EASY-SCALE™  to about 2 inches below the top. Tilt the pump back to fill the pump with water, then top up the EASY-SCALE. Switch on pump and test for leaks. Tighten fittings, caps if necessary then add descaler solution (Oust or similar)

7. Run pump for a minimum of 30 minutes, longer if you want, on heat (30°C). *** DO NOT ALLOW THE PUMP TEMPERATURE TO EXCEED 35°C *** If you do, you’ll encounter an E3 (high temp) error, which cannot be reset without dismantling the pump to access the thermal reset switch. Whilst descaling, it is usual for the solution to go very milky.  The milkier the solution, the more limescale you are removing.

8. Whilst descaling, it is usual for the solution to go very milky. The milkier the solution, the more limescale you are removing.

9. Remove the lower cap to drain or tip the solution out with the EASY-SCALE™  attached to the pump into a suitable container or jug. Refit the cap if necessary, refill with clean fresh water and repeat steps 7 and 8 for a minimum of 5 minutes.

10. Drain and remove the EASY-SCALE™  and fittings from the couplings. Start with the bottom left as you may need to screw the black pipe into the bottom left to assist in the removal of the preassembled pipes. Pop the fittings and black pipe in the EASY-SCALE™ ready for next time. Refit pump to hot tub. Remove caps from inside of tub. Switch on pump and enjoy once again!