Complete Pump Supplies | Supplier Domestic Water Pumps & Booster Pumps

Lowara Resvari Variable Speed Domestic Booster Set

Lowara Resvari Variable Speed Domestic Booster Set

Lowara Resvari Booster Assist Unit

Product code: UKRESVARI10205A
£1887.60 inc. VAT
Save £1468
Valid until 01/12/2019
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Lowara Resvari Variable Speed Domestic Booster Set

Resvari (Variable Speed) booster sets for domestic dwellings with integral water storage with type AB Air Gap. Single phase 230v. Ideal for increasing water pressure around the home.

Resvari (variable speed)  Booster Sets

  • Integral water storage with Class AB air gap I.E. Category 5.
  • Delivery: up to 1 l/s 
  • Head: up to 4.2 Bar.
  • Actual usable tank capacity 180 litres.
  • Adjustable feet for easy levelling.
  • Internal vessel for smooth pump control and minimising the number of pump starts.
  • Input / output isolation valves for ease of maintenance and commissioning.
  • Low water protection


The Resvari (variable speed) and Resfix (fixed speed) booster sets have been designed to be compact, quiet in operation and to make servicing as simple as possible. Both variable and fix speed booster sets use a common cabinet size which have a removable top section. On routine maintenance checks or the rare occasion when the unit may need attention the top section can be easily removed to expose all the components which will help to make servicing quick, clean and problem free. Assist unit
Where a larger water storage volume is required an assist unit can be added to give an additional 180 litres of water storage

Duty Requirement

The duty required can be found by looking at the two following items:-

  1. Pressure requirement. This has 3 elements to consider:- 
  • a. Static head. This is the height above the break tank water line in the booster set to the highest outlet.
  • b. Friction loss These are the losses through the pipe work including bends.  In the example below, estimating the total length of pipe to be 25 metres and limiting the velocity to 1.5m/s an average pressure loss of 15 metres per 100 metres can be expected.
  • c. Residual pressure, this is the pressure required at the outlet.
  • Example: Static height = 4m, Friction loss = 15/100 x 25m = 3.75m, Residual pressure at highest outlet = 20m, Total pressure requirement = 4 + 3.75 + 20 = 27.75m/10.2 = 2.7bar
  1. 2. Flow requirement. The flow requirement will depend on the number of occupants and the number and type of outlets that will be served. In general the Resvari (variable speed) and Resfix (fixed speed) booster sets are suitable for dwellings with up to 4 occupants or 6 occupants with the addition of the assist unit.

Services Guide

  • 1 bedroom 210 litres
  • 2 bedroom 130 litres each
  • 3 bedroom + 100 litres each

Daily water demand as recommended by the Plumbing Engineering

  • Power Supply : 230-1-50
  • Protection : IP65
  • Pump Type : Scuba SC205C 230-1-50
  • Input current :  4.37A

System connections

  • Mains incoming water supply: 15mm
  • Overflow: 22mm
  • System connection: 22mm


  • Cabinet: Powder coated steel
  • Water tank: Polyethylene
  • Ball valve 1/2”: Brass to BS1212 part 2
  • Pump: AISI 304 Stainless steel
  • Pipework: Copper
  • Compression fittings: Brass
  • Isolation valves: Brass
  • Plastic fittings: Polypropylene
  • Tank insulation: Poly­iso­cy­anurate (PIR)
  • Anti-spin bracket: AISI 304 Stainless steel
  • 8 litre vessel: Powder coated steel with Butyl membra 


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Delivery Information

Free delivery relates to MOST products on the Website over the value of £100.00 (excluding VAT). 

*Unless otherwise stated on individual items* 

Products purchased under £100.00 will incur a £6.95 delivery charge.

Standard Delivery Orders over £100.00 (3-5 working days)* - Free shipping for in stock items to mainland UK*. 

Next day shipping is only available for stock items which are ordered before 14:00 at a charge of £12.50*. Any orders that are placed after this time will be processed the following day.

Specified delivery times are based on orders placed before 2pm Monday to Friday (excludes Weekends and Bank Holidays)  - for more details please see "UK Shipping Charges" below.

Weekend or orders placed on a Bank holiday will be dispatched on the next working day.

*Excludes UK Islands, Republic of Ireland and Scottish Highlands.

During Christmas and New Year our warehouse will be closed. Orders over this period will be dispatched on the first working day after New Year.

Delivery times are subject to change if the item is out of stock with our supplier. There are products on our Website that are not stocked at our warehouse, nor with our manufacturer's UK warehouses, therefore lead times can vary. This is why we recommend you contact us prior to purchasing to check current stock levels and lead times.

If you are not available to take a delivery on the specified date, you must let us know immediately. If we attempt to deliver your order and no-one is in, a re-delivery charge may be incurred.  

As we use 3rd party delivery agents, Complete Pump Supplies are unable to guarantee that all deliveries will be the next working day. Complete Pump Supplies will not be liable for any loss of income, loss of profits, loss of markets, loss of reputation, loss of customers, loss of use, loss of an opportunity even if we had knowledge that such damages or loss might arise or for any indirect, incidental, special or consequential damages or loss howsoever arising.

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