Another day, another burst flex. Our Beacon Hill customers were lucky someone was home when this happened. We are now replacing the old stainless steel rubber inside flexible connectors with a new polyamide and pex flex which should mean that you don't get them rusting and bursting. It is highly recommended that you keep an eye on them and if you see any signs of rust you have them replaced quick smart. Failing that, they should be replaced every five years.