Clear Choice’s Spa Prep is the first step in converting to our spa water purifying system, and maintaining your spa without using harsh spa chemicals. It contains non-bacterial enzymes, plant extracts and natural surfactants (soaps) that quickly breakdown and remove organic and chemical build up from your spa’s plumbing, ensuring a trouble-free transition to the Clear Choice system. We suggest cleaning your spa with Spa Prep every 6-12 months before changing your spa’s water.