A fix for the dreaded E02 problem. Replaced the water, flushed the inlet and outlet with the hose to no avail. Saw this tip online and gave it a go. DIY stores sell 15mm pipe which is to narrow for a sealed fit so I wrapped DIY tape to make up the thickness. Drilled holes in a bucket and look at the result. I also flushed the two ports on the spa itself and used a toothbrush to clean the holes on the inside of the spa. A few of the holes were blocked so this job is well worth doing. Thanks to John Morales who posted the original idea, which I’d never have thought of. Thought worth adding this because of the DIY tape trick.

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