As far as replacing old plumbing is concerned, your home can surely let you know that something is not right. You can use your various senses like listening, seeing and smelling.
You can always get an early warning by observing the following few signs and know that it is the right time to replace your plumbing.
Longer you ignore your leaky faucet the things will go further worse. These leaky faucet problems can never get fixed by itself. Luckily, there are few types of faucets that can easily be replaced, if you have got the basic tools available with you.
You can easily notice if the drain ever gets clogged. You will find that your water in the sink is not being emptied easily. There is one household solution for this problem. You can mix vinegar with baking soda that can clear the clog.
In case, you ever notice slow drains then you can use venting pipe to build up the necessary pressure so that water can easily flow out quickly.
If you are living in any older house, then most of its piping was done by using galvanized pipes. As per the modern building code all these galvanized pipes must be replaced as they may have been corroded from inside and cause many problems.
All these gurgling sounds are the indication that your pipe lines are choked due to soap or hair that flow out. Again, by using a venting pipe you can resolve the problem.
If you are getting foul smell then certainly some thing is not Ok with your plumbing. There can either be leaky water that has created mold or stagnant water that it is getting pooled somewhere.
You should not neglect if your toilet is being refilled constantly, it will not only disturb your sleep but also your water will get wasted and raise your water bill too.
Water quality problems
If you ever find foul smell from your water then it is certainly an indication that there is a need for replacement for something. Water heater can be one of them. There can be possibility of bacteria getting developed in the pipeline.
If you regularly get brown or dark water from the pipeline then it is an indication that your pipeline has developed rusting inside which needs immediate attention.