Any tips on drainage and blocked drains to abet as i a moment ago started up on my own appreciation?
Answers: All Rainwater drains are back inlet gulleys and cannot be rodded from the top, you enjoy to rod them from the manhole. These gulleys have a hose down trap like the trap lower than a sink and you have to clear these next to your hand. If you heave manhole covers, you have to grease the frame until that time you replace the cover to prevent any sewer smells seeping out.
Always , Always look for the result in ,and the reason for the do of a blockage , than as well as unblocking the drain , you can explain the defence it happened and I don`t know get the contract to remedy the situation