I,ve gone for several months using tap hot water running my ninja from the van as the internal steam mate and tank heater stopped working. Finally got round to getting the new wiring upgrade to get them working again when the pump head and motor finally gave up the ghost last week £750 later!!!

Anyway, DAYM... I missed the steam mates heat! Even with microsplitting/ HOST agitation there was a noticeable difference in cleaning performance using a plain water rinse.
Problem. The whole system clogged up half way through a £500+ domestic job and I had to return the following morning. >: (A couple of spanners revealed that the internal pipework was loaded with accumulated scale. I flushed 1/10 pH1/ water through the bleed hose for ten minutes and then thoroughly rinsed with plain water and I think I've removed it all...Now it seems to heat up within a couple of minutes!

And now to the point of my post. Pumptech do an inline water softener, trouble is it would have to be plumbed in prior to the steam mate and I don't think there's enough room...If I dumped the salt in the solution tank instead will it run out quicker, bearing in mind the the 400psi ninja is a recirculating system?