I find that having installed a new toilet with a 6 litre flush I am having to occasionally rod the drains. I have had the drains power flushed and inspected with a camera and they are ok.. Having lowered the amount of water in flush has their been any changing of the regulations regarding how the drains are laid.
Sam Farrell
Sam I didn't have the inspection, but I had the same experience with old drains (porcelain on a 50m run to a septic tank). Installed a toilet with low flush for fluids and 6 months later the system blocked and took probably more water than had been saved to get the drain to clear. I disconnected the low flush and haven't had any bother since.
I do wonder whether in the final analysis, the modern plastic drain with its almost seamless joints is better than porcelain in the end.
Rob
The message
from robgraham contains these words:
Yes, almost certainly.
I don't know about absolute lifespan, but certainly in terms of intervals between clearance of major blockages. And it's virtually impervious to root penetration, too.
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