What is a Wet Riser ?

A Wet Riser System can be found in premises of 60 metres and above. A Wet Riser is a system of valves and pipework which are permantently kept charged with water.

Wet Riser mains are designed for use by the Fire and Rescue Service and other trained personnel. They provide a readily available means of delivering considerable quantities of water to extinguish or to prevent the spread of fire.

Why Should I Have A Wet Riser Tested?

All buildings which have fire risers must comply with the new British Standard BS9990:2015, should be visually inspected every six months and pressure tested annually. This test should only be carried out using water, NEVER AIR.

The responsibility of ensuring that this test is completed belongs to either the owner of the premises, the Manager or Management Company.  It is the responsibility of the property owners or the Managing Agents to comply with the British Standards.

Failure to adhere to the rules and regulations could result in prosecution and may also invalidate your insurance if a fire situation were to occur and the system fails due to a lack of regular maintenance. Please refer to our page on Fire Safety Order for further information.

Why Should I Use Dry Risers Ltd To Carry Out Wet Riser Testing & Maintenance?

Fire equipment maintenance must be carried out by Competent Persons as required by relevant British Standards, Codes of Practice (Fire Safety Order (RRFSO)) and guidelines as prescribed by the manufacturers.

The RRFSO states in Part 2, Fire Safety Duties – Section 17 (Maintenance):

(1) Where necessary in order to safeguard the safety of relevant persons the responsible person must ensure that the premises and any facilities, equipment and devices provided in respect of the premises under this Order or, subject to paragraph (6), under any other enactment, including any enactment repealed or revoked by this Order, are subject to a suitable system of maintenance and are maintained in an efficient state, in efficient working order and in good repair.

In the event of an incident, fire investigators will ask to see a Certificate of Conformity, which should only be issued if the required standards have been adhered to.

Dry Risers Ltd ensures all works are completed in accordance with BS9990:2015 – the industry recognised British Standard.

What Do Our Wet Riser & Maintenance Services Consist Of?

The Annual Static Pressure Test

The is very similar to the Dry Riser static pressure test, however the system is already charged full of water.

A pressure reading is taken at each landing valve and additional actions are completed as follows:

  • Check internal cleanliness of storage tanks
  • Thorough check of booster pumps and their associated mechanical and electrical equipment

Visual Inspection, Maintenance & Remedial Repairs

British Standard BS9990:2015 recommends that the system is visually inspected every 6 months and serviced annually to ensure that the equipment is in a satistactory condition and ready for immediate use in an emergency.

The six monthly visual inspection consists of:

  • Checking all outlet washers
  • Checking for damaged or missing blank caps and chains
  • Checking that all hand wheels and nuts are undamaged and in place
  • Checking landing outlet valve connection clips are free moving and undamaged
  • Checking the cabinets and doors for corrosion
  • Checking the cabinet glass
  • Checking all required signage is present and correct

Maintenance & Remedial Repairs (as required):

  • Replacing outlet washers
  • Repair or Replace Valves
  • Replace blank caps and chains
  • Repair or replace hand wheels and nuts
  • Repair or replace landing outlets
  • Replace the cabinet and door
  • Replace cabinet glass
  • Supply wet riser signage to all floors (as necessary)

Detailed Asset Inventory for each system

Dry Risers Ltd provide a full written report detailing current status of all equipment for each system.

In the event that we identify any equipment to be unsatisfactory, a written estimate for remedial repairs can also be provided on request.

If you would like a further explanation of the required standards, or a wet riser testing estimate, please call Chris on 0845 463 9581, Email or use our Enquiry Form