never noticed when the floor started giving a little until my sister fell through it. that was such a night mare as the damage was extensive.
we have so many plumbing issues with our house as this is an old home built in 50s.
great tips on this one. vinegar and soda are the things i use at home along with boiling water. same thing i do with the toilet bowl. it is nice to know it is not safe to use one of those colored tablet thingies. sure don't want any damage to happen. it is a lot of maintenance to have a house functioning so well, but it is nice 