Changed water and used Swirl Away, didn't see much dirt come out of the jets, just had a little foam on top of water, didn't use any air, when pumps stopped the foam stayed but the water was as clear as always.
When we had our soak after we changed water my wife asked me if I adjusted the pumps (as if I new how) because the jets had more pressure, the water also seemed quieter.
My question is was the increase in pressure increase due to using Swirl Away which didn't seem to dislodge anything from the pluming or the decrease of the TDS which was in the 2600 range and was the reason I changed the water?