Rat-a-tat-tat

antiskeptic

Hi there,

Looking for a bit of pro/experiential advice on rats-in-sewer problems.

My sister is suffering from occasional rat visitation which seem to locate at the dividing line between her original house and her extension. She poisons, kills, put's up with the smell and moves on. But it's getting to her.

I'd a mate who does drain clearing send one of his lads up with a basic camera taped to a drain-rod to inspect her drains (I found a dead rat down the rainwater drainage manhole). We managed to get the camera about a metre up the pipe before encountering a separation between pipe segments of about two inches. Semi-solid debris stopped us checking further and yer man had to head off to a job

Questions:

1) Given the gap in the pipework, is it feasible that a rat could burrow under the concrete floored extension for 15 ft so as to emerge under her wooden floored kitchen. It wouldn't be too hard to apply a 'stent' to bridge the gap in the pipe but she's keen on nailing the problem so I don't want to fix this only to find their getting in somewhere else in a couple of months

2) Can anyone recommend a drain inspection (as opposed to clearing) company in the case we want to do a complete survey of her drains.

Thanks