Technical Booklet N Drainage·Page 12·2.5
Access for cleaning blockages in traps
Traps that are part of appliances must allow the appliance to be removable. All other traps must be fitted directly after the appliance and be either removable or fitted with a cleaning eye.
If a trap forms part of an appliance the appliance should be removable. All other traps should be fitted directly after the appliance and should be removable or be fitted with a cleaning eye.
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