Tree roots blocking drain
Cause
Roots seeking out water – problems are more likely to occur with older clay pipes or perforated plastic drains
Repair
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blockages caused by tree roots can be confirmed by a licensed or certifying plumber inserting a CCTV camera on a long cable into the drain
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a short-term solution is cutting the roots away with a specialist power tool
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some plumbers offer patching solutions once the roots have been removed
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digging up and replacing the affected part of the drain, or the whole length of drain, can provide an effective longer-term solution
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removing the trees is another option