Spares / repair Scalemaster SL150 (Basingstoke RG22)

Scalemaster SL150 single tank water softener - I have found that sometimes (rarely) this gets stuck in the regeneration cycle (found water running). It had a replacement resin tank last year so if you already have one the same you could use this for spares. It was serviced by Scalemaster a couple of years. I got a different one (twin tank Kinetico) so no longer need this.