Need to fix a 100mm clay drain that has cracked. Should I go for cheap glass fibre resin patch/sleeve such as this sort of thing trelleborg drain repair or a proper job with 9m of trenching 1m deep and new plastic pipes?
We specify liner/patch repairs all the time. As above, wont last as long as a whole new pipe, but perfectly good for 20 years if done correctly. Fraction of the cost esp on a dig greater than 1m. Just watch for any incoming drains from gullys etc if using a liner. Full CCTV survey and jet wash first.