Plumbsoft Solo - Non Electric Water Softener
For technical advice please mail to
        Plumbsoft Solo

For conventional plumbing systems (ie: tanks in the roof)

Plumbsoft Solo Ultra
For mains feed pressurised/unvented systems and combination boilers.

Takes block or
tablet salt
A plumbsoft water softener will:
Remove any existing scale to improve the efficiency of your hot water and heating system. No more scale means lower fuel bills
Give considerable cost savings in maintenance, service, repairs and unnecessary replacements of hot water cylinders, immersion heaters, washing machines, dishwashers, showers and boilers caused by the effects of hard water
Save up to 50% on washing powder bills, soaps, shampoos, conditioners and cleaning products too
Reduce soap and detergent usage alongside the removal of chalk from water, allowing your skin to breathe and in turn significantly help dry skin problems such as eczema
Remove any scale around taps and showers, etc
Give a clean silky feel to the water
Ensure no more tide lines and scum around the bath
Save the average 'hard water family' over 250 a year by switching to soft water
Make laundry brighter and softer to touch
Keep cutlery clean and free from streaks
Ensure that you never want to go back to hard water - and that's a promise!
*5 years parts guarantee with 2 year labour warranty.

Technical details

Model Name
Litres of Solvent Free Resin
Salt Use per Regeneration (kg)
Max Flow Rates
Dimensions (mm)
H x W x D
2 x 4.6
500 x 250 x 490
Solo Ultra
2 x 4.6
500 x 268 x 490

Installation Requirements

Water pressure: 20-70 psi. Operating temperature: 2-49°C. Drain facility. Min Flow - 1 lpm


Plumbsoft models are suitable for both 15mm and 22mm water supplies. If you have a larger supply than this please consult the Monarch Ultimate series.

back to top


5-Year parts and 2 year labour guarantee
Maximum Efficiency
High capacity resin ensures maximum efficiency
Non Electric
Your moving water powers the Solo
Easy Open Lid
Simply pull the lid forward to remove it for easy salt filling
High Flow Rates
Suitable for all types of plumbing systems
Twin Cylinder Operation
One completely clean softening cylinder is always standing by! Takes block or tablet salt.
Monarch - leading water softeners manufacturers since 1964
Monarch - The UK's leading individual brand