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Step 1
Shows cut out section of copper water pipe and residual water continuing to flow out.
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Step 2
25mm threaded access opening welded into replacement section of copper water pipe.
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Step 3
About to screw bladder into the female end of stainless steel flexible hose.
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Step 4
Insert air valve end of stainless steel flexible hose into open end of replacement section of copper water pipe and then feeding the hose up and out of the 25mm threaded access opening.
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Step 5
About to insert deflated bladder into the existing copper water pipe in the ground.
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Step 6
Have now fed deflated bladder and all excess stainless steel flexible hose up the existing copper water pipe in the ground.
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Step 7
Have now attached hand air pump to air valve end of stainless steel hose to now pump up the bladder and block of the flow of water in the copper water pipe.
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Step 8
Replacement section of copper water pipe is now fully inserted with welding socket into position. Once residual water stops flowing the copper coupling can be oxy-acetylene welded into position to join the replacement section to the existing copper water pipe.
Note: The stainless steel hose remains in the line whilst the oxy-acetylene welding is taking place.
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Step 9
When welding is finished manually release air from the bladder and stainless steel hose by depressing the air valve end of the hose so the stainless steel hose with the bladder still attached can be pulled out carefully from the pipe.
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Step 10
Completed section of piping now with brass cap screwed onto threaded access opening.
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