The WS 155 belongs to an exclusive collection of compact, high-performance water softeners—expertly engineered to complement UK homes and plumbing systems. Every model offers effortless installation and seamless integration, delivering the sophistication of Luxury Water with minimal disruption and maximum comfort.
| Household size: | Up to 4 persons |
| Plumbing compatibility: | Standard (Gravity fed) and pressurised systems up to 22mm (subject to install kit) |
| Installation requirements: | Close proximity to rising main and stopcock + Standard 13 amp plug socket |
| Installation Kit: | 15mm Valves and Flexible hoses (Overflow pipe not supplied) |
| Location: | Suitable for floor standing kitchen cupboard (width >667mm) or floor standing |
| Salt type: | BWT Tablet salt or block salt (no carrier required) |
| Operation: | Electronic control system – softener adapts to your life style |
| Regeneration Frequency: | On demand |
| Warranty: | 5 year parts and 2 year @home Labour |
| Commissioning: | By BWT Engineer |
| Approvals: | WRAS |
Home Commissioning
Make sure your new Luxury Water Softener is perfectly tailored to you, your home, your lifestyle, and your local water conditions. Setup properly your Luxury Water Softener will automatically adapt to your typical water usage—giving you an abundant supply of silky-soft Luxury Water while helping to reduce water and salt consumption.
BWT’s @Home Commissioning is also a great chance to ask any questions you might have and get the most out of your new system.


Market Leading Warranty
Your WS 155 comes with a comprehensive @Home warranty 5 years on parts and 2 years on labour. In the unlikely event that your new softener develops a fault, there’s no need to worry about returning it to us. We’ll come to you! One of our fully trained engineers will get your favourite appliance back up and running in no time, at no cost to you.
And when your warranty ends, you can easily extend it for a small fee so you can continue enjoying all the benefits of Luxury Water, worry-free.






