<p>We attended the above named site on 13/07/17 to survey a suspected leak on the trunk main feeding the underside of 4 x deluge 200mm sets and as you are aware the water was coming from the surface through the slab and into the underground tunnel. (not sprinkler related).</p><p>whilst on site i was required to reinstate both diesel fire pumps and all four valve sets also to open any and all valves which had been closed by others.</p><p>&nbsp;</p><p>my findings whilst onsite were as follows.</p><p>both diesel pumps, their power supplies isolated which in turn powers down the dc chargers this could and would lead to flat batteries for both diesel pumps if left off for too long. there are much more simple ways to isolate these pumps with no risk of flat batteries.</p><p>site had also isolated the sprinkler tank infill and tank suction valve( this is the delivery of water supply from the tank to the fire pumps).&nbsp;</p><p>my next concern is that all four deluge systems had their top side isolation valves closed.</p><p>if a fire had broken out on site, and staff wanted to quickly get the systems back online ,this would have been made a near impossible very timely&nbsp; and very dangerous task due to the number of valves that had been close and their various locations across the site.</p><p>all of the isolations that needed to be carried out onsite can be done within the fire pump house. in case of emergencies when isolated the correct way the system can be back on line and firefighting in less that 60 seconds.</p><p>i also noticed onsite that the valve sets had last been serviced on 24/06/15.previous services are recorded in 6 monthly intervals. That puts this site 3 services behind where it should be. i would strongly recommend that a major service is carried out as soon as possible, the fire pumps would also require a service visit from a pump specialist&nbsp;</p><p>all four bell line strainers are incorrectly fitted which can and will cause a blockage in the bell lines thus rendering the bells useless (the bells will not sound)</p><p>&nbsp;</p><p><strong>Our total cost to carry out the above works in normal working hours shall be &pound;6,855.00+VAT</strong></p><p>To carry out the annual testing of 4 x 200mm BW Deluge Valves &pound;1720.00+VAT</p><p>To carry out the annual testing of the 2 x Diesel Pumps and Jockey pump on site for &pound;1,485.00+VAT&nbsp;</p><p>To change 4 x 200mm BW Deluge valve seal kits at the same time as the annual service &pound;2,040.00+VAT</p><p>To Supply and fit 4 x new strainers to the bell line and modify the pipe work to suit &pound;1,010.00+VAT</p><p>1 day training for staff on equipment -&nbsp;&pound;600+VAT</p><p>PROJECT NOTES:</p><p>.A faulty pump set was Identified, The faulty pump is wall mounted in the confined space tunnel at one of the access points about 2.5 meters height - We have not priced to repair / replace as i am unsure if these are under any form of warranty.</p><p>.Could you find out how old the deluge systems are on site as when they get to 30 years old, site would be required to carry out a 30 year service which involves removing small section of pipe from each system and also a small percentage of sprinkler heads from each system to be integrity and performance tested.</p>