VSF04 WPL SANDFILTER
OPERATION AND MAINTENANCE MANUAL
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Page 1: ...VSF04 WPL SANDFILTER OPERATION AND MAINTENANCEMANUAL Site name Reference number ...
Page 2: ...lts and Bolt Strips 7 4 5 Lifting 8 5 TANK INSTALLATION IN GROUND 9 5 1 Introduction 9 5 2 Installation of Unit 9 5 3 Local Ground Conditions 11 5 4 Installation of Kiosk 12 5 5 Connections to kiosk 12 6 PIPEWORK DUCTSAND SAMPLE CHAMBERS 13 6 1 Pipework 13 6 2 Sample Chamber 13 7 ELECTRICAL INSTALLATION 14 8 PLANT DESCRIPTION 15 8 1 Plant Description 15 9 Operation and Maintenance 16 9 1 SAND FILT...
Page 3: ... P a g e APPENDIX 2 21 LIFTING 21 APPENDIX 3 22 APPENDIX 4 23 Revision History Date Change description Owner Checked Revision 09 07 2015 First issue TGH KM A 13 01 2021 Revised Layout RT TC B 07 07 2021 New front and pack page RT C ...
Page 4: ...e plant should be prohibited 1 3 Leptospirosis The following is extracted from a health warning card issued to WPL Ltd s staff It is the client s responsibility to ensure that the relevant Personal Protective Equipment PPE is available and used There are two types of Leptospirosis that effect people in the UK and they are as follows 1 Weil s disease which is a serious infection transmitted to huma...
Page 5: ...eration has been given to and appropriate action taken with regard to the following Planning permissions Building Regulations and other regulating or interested parties Environment Agency consent to discharge The legal responsibility for the plant as far as operation and maintenance and ongoing discharge is concerned Note failure to comply with any regulation may result in pollution odourand nuisa...
Page 6: ...additional venting high or low level off of the inlet or outlet pipework or the sample chamber Sample point A safe and adequate sampling point is usually a requirement of the Environment Agency This can be an off the shelf item or constructed using standard drainage components Open pipe discharges to ditches watercourses etc through pipework of less than 5m in length do not require a sampling poin...
Page 7: ...adway to site that is suitable for heavy goods vehicles A minimum height clearance to 16 6 5m is required If there are electrical cables overhead ensure that there is a means of turning the power off For off loading from a lorry mounted HIAB there needs to be a firm area for the stabilisers the total width being a minimum of 15 feet 4 6m If the nearest road access for a heavy goods vehicle is not ...
Page 8: ...ome form of anti condensation heater will be required if the unit is not to run immediately Data Sheets for electrical components can be found in appendix 3 4 4 Bolts and Bolt Strips Due to the settling of the joints during transportation of the unit the bolts may become loose and need tightening It is important that the bolt strips are not overtightened as this can cause leaks Tighten all bolts i...
Page 9: ...ts with muddy boots as this will scratch the surface NOTE Units with extensions for inverts greater than 0 5m turrets with covers are supplied separately and therefore the unit may collect rainwater When moving across rough ground great care should be taken to avoid increased loads due to sudden movement of the unit ...
Page 10: ...uirement If wet mix concrete is to be used a qualified civil engineer must be consulted and the pour cannot take place in a single operation Contact WPL for further information Adequate supply of water to fill unit Pumping equipment where necessary N B Installing in an excavation that allows water to enter i e is not dry requires special advice Water table and flood conditions are typical examples...
Page 11: ...se unit in excavation taking care not to cause distortion of the unit Fit temporary covers over all pipe connections Step 6 Commence filling unit with water into all sections to a level of 500mm Step 7 Commence back filling with lean mix The back fill must be evenly placed around the unit at all times and worked by hand up to a maximum level of 400mm above the base DO NOT USE VIBRATING POKERS The ...
Page 12: ...ust be sufficient to overcome the effects from the up thrust of ground water The unit is designed for a maximum water table of 1 0m from the base of the tank unless specified otherwise If the water table is higher than this maximum damage may occur during backwash or emptying of the tank The concrete backfill must be designed to stop the water table pressure damaging the tank A qualified engineer ...
Page 13: ...ab through the unistrut and seal to the concrete with mastic Do not secure until the concrete slab has fully cured 5 5 Connections to kiosk Step 1 The air hoses will have been delivered lying on top of the filter section of the unit Feed the hoses down the duct and connect to the bulk head connectors on the top of the unit or turret if fitted Jubilee clips are either secured to a blower or in the ...
Page 14: ... 1 100 is usually required to give a self scouring velocity that prevents blockages in the pipes 6 2 Sample Chamber Positioning This should be close to the outlet from the plant to provide a point at which the Environment Agency can take a sample Dimensions The sample chamber should incorporate a large enough drop to allow a sample chamber to be filled with the treated discharge The following draw...
Page 15: ...e I E E An earth leakage circuit breaker is recommended and should be incorporated into the supply to the sand filter A device with a 30mA maximum trip current is recommended N B The wiring diagram is a separate sheet in the envelope containing all the other documents If it is missing or lost please contact WPL for another copy Three Phase Connection When the 3 phase supply is switched on check th...
Page 16: ...es blocked by contaminants the passage of effluent is restricted and causes a backup in the filter chamber This back up is monitored by a sensing device and at a pre determined level the device activates a relay in the control panel to open one part of the back wash cycle circuitry The other part of the back wash cycle circuitry is activated by a timer Both the relay and the timer must be activate...
Page 17: ...rt at 04 00 hours and off at 04 04 hours The time clock is provided with battery backup to retain the settings during normal short power failures These times were set at the factory but they should be checked during commissioning The time clock selector switch must be in the auto position for the backwash cycle to work The delay timer begins the backwash cycle by operating a solenoid valve to allo...
Page 18: ... kept at level of 450mm from the steel plate 2mm 4mm Dry Quartz sand should be used and can be purchased from WPL directly Sand Filter Pump 1315 Appendix 3 The condition of the Sand Filter Pump should be checked as per the manufacturer s instructions Please see the Lowara O M attached with this document Blower 2BH1610 Appendix 4 The condition of the Sand Filter Blower should be checked as per the ...
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Page 21: ...ase the slab should be cast deep enough to take the weight of the blower s designated Please refer to WPL before laying the concrete Medium Kiosk WPL s medium kiosk has a gull wing type opening with the front hinging upwards to give easy access The concrete slab should be 1200mm x 950mm Large Kiosk The large kiosk has a standard front opening door The concrete slab should measure 1400mm x 1600mm E...
Page 22: ... the unit for the attachment of suitable strops of equal length These should create an angle of no less than 600 to the top of the unit to avoid excessive loads on the sides of the structure WARNING Care should be taken when attaching lifting equipment as the surface of the unit becomes very slippery when wet ...
Page 23: ...Operation Maintenance Manual 22 P a g e APPENDIX 3 Lowara 1315 Pump O M Manual Attached on separate PDF ...
Page 24: ...Operation Maintenance Manual 23 P a g e APPENDIX 4 BLOWER 2BH1610 O M Manual Attached on separate PDF ...
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