Boreline retrieval procedure - using a vehicle
Stop the pump. If a 6mm (ΒΌ") hole has been drilled into the check valve allow the water to drain down to the static water level - allow 30 seconds per metre ( 10 seconds per foot ). If a Break-Off Plug has been installed open the access port in the wellhead and drop the anvil tube to fracture the plug - when the water level drops allow 30 seconds per metre (10 seconds per foot) to completely drain down - meanwhile, recover the anvil tube using the attached cord.
Disconnect the electrical supply and discharge pipe-work.
Using the tripod or crane lift the Boreline out of the borehole and clamp the riser with the Boreline clamp. Do not clamp the cable. Lower the Boreline so that the clamp rests on the casing and takes the complete weight.
Place the rolling wheel against the borehole ensuring that it is centrally positioned and secured. (An unsecured roller can move and cause damage to the hose - or injury to the operator.) Lift the Boreline and fold it over the rolling wheel and attach it to the vehicle using the second clamp. Ease the vehicle away from the borehole so that it takes the weight of the assembly and remove the first clamp.
Drive the vehicle slowly away from the borehole lifting the Boreline and pump.
As the pump approaches the top of the borehole, clamp the riser and allow the clamp to rest on the borehole. (Proximity of the pump will be indicated by the red cable ties.)
Use the tripod or crane to lift the pump out of the borehole.
Please note. If the Boreline and pump have to be removed while full of water the column will be considerably heavier than normal. In this case make sure to allow for the extra weight when using lifting devices and vehicles.
See the full specification table, above, for nominal weights of the Boreline and water column per metre. The addition of pump, cable and accessories weights will give the total weight of the column to be lifted.