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BWT Water Softener 14L Waterside with 22mm/15mm Hoses - WS355HF/WS355

Code: WS355HF/WS355
  • £591.60 (inc. VAT)
  • (FREE UK Delivery)
Available   |   Usually dispatched within 24 hours

As the most loved British Water Softener company, BWT and their ten years of constant research has led to the finest products in the category.

Available for free next day delivery.


The Waterside WS355 and WS355HF models

These machines are fitted with the Millennium Rotary Valve.


Options to choose

High flow model WS355HF with 22mm hoses

Standard model WS355  with 15mm hoses


Specification on all Models

230v/12v DC

 BSP inlet/outlet connection

Drain connection

Upward Flow regeneration

AMECS (Advanced memory electronic control system)

Easy to read display panel.

Future proof for all modern systems. Combi, Megaflow and as well as standard vented

Individual Options

14 ltr Model - H x W x D 602mm x 270mm x 480mm (1-5 people)

WS355 - Max peak flow 30 lpm

WS355HF - Max peak flow 50 lpm on the High Flow Model

Basic Flow rate 26 lpm

Regeneration Time 110mins depending on size of machine

Pre-Assembled & Factory Set For Easier Installation

Low Water & Salt Usage

Low Salt Alarm

Free BWT Commissioning Visit after Installation

2 Year Labour & 5 Year Parts Warranty (Manufacturer's)


H x W x D: 602 x 270 x 480mm. Low voltage. Max. peak flow rate: 50Ltr/min. Max. continuous flow rate: 35Ltr/min. Basic flow rate at 1bar pressure loss: 26Ltr. Max. pressure: 5bar. Min. pressure: 1.7bar. Inlet / outlet connections: " BSP. Drain connection tube: ". Max. softened water 2500 Ltrs

BWT WATERSIDE "Warranty @ Home" requires you to register your purchase within 100days of purchase to qualify for this extended warranty offer.

Free 'at home' commissioning:

Free 'at home' commissioning is available on our range of BWT water softeners and brings a wealth of benefits to our customers. Passing the mantle to one of BWT's fully trained engineers, frees up the installers time to focus on other aspects of the installation, whilst the consumer knows that not only will their water softener be set up to suit their specific requirements, including the local water conditions, but the home visit will also give them the chance to answer questions not just about their new purchase, but also about water softeners in general. 

To book a free 'at home' visit, please click this link:


How a water softener works

How to install a BWT water softener

Drinking water and filter tap available here:

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Many of our items have free delivery and where next-day delivery is shown we will endeavour to achieve this, as long as the order is placed before 1pm, is within the UK mainland and subject to stock availability.

We will email you an estimated delivery date either on receipt of your order or once it is processed. Where tracking information is available we will send that too once the order is dispatched.

Unfortunately, we currently do not deliver to addresses outside the United Kingdom, but you can arrange for a courier to collect from our premises.

Medium and large items incur a delivery charge. If more than one medium or large items are ordered only one delivery charge will be applied. This will be displayed in the basket during checkout. Medium items are £27.30 and large items are £49.99 (including VAT). The delivery charge for the largest products - eg wall panels and worktops and some heavy ceramic items and shower trays - is £59.99. Please note we are not making a profit from this - we are using delivery services that have a track record of not breaking items and passing on the cost that we are charged.

We want all our customers to be happy with their purchases. Returns may be made within 14 days of delivery for unwanted goods or 30 days for faulty goods. 

Please inspect goods as soon as possible after delivery. Damaged items MUST be reported immediately - or at least within 3 days. Delays reporting damage make resolving the issue much more difficult.

Please either email us at to let us know that you would like to make a return and why.

Please ensure that the goods returned are intact, unused and in the original packaging. Please be aware that some of our suppliers will ask for a restocking fee to accept returns. (Plumb-Warehouse will not charge a restocking fee - we will only pass on the supplier's fee).

For our full Delivery & Returns - please see here.

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Claydon House Business Centre

1 Edison Rd



HP19 8TE