Hi guys,

Would like help with this, we have a overhead tank from which water is distributed to various bathrooms and other locations through concealed PVC pipes(cold water) and GI Pipes for hot water. The pipe lines are 10 years old, due to the hardness of the water, we are facing a problem of very low pressure in the water coming out of the taps.
My question is whether there is any way in which we could de-silt the pipes either by using a chemical or any other home remedy.
The overhead water tank has a capacity of 1000 liter.
Hoping there would be a solution which does not require us to lay new pipes all the way.