Modern Oracle

Anonymous has left a new comment on your post "Water in, water out. Money in,money out. Easy-peasy...":

I know that you like to think that your many years of experience on council means that you know better than most, but I doubt that you are a civil engineer.
 Your statement:
"That is, if it is proven ground water is infiltrating.

You would think if ground water filters into a pipe, it would also filter out of the pipe."

 Hydraulic pressure is what forces ground water into the sewer pipe. That is the pressure of water and the surrounding soil that pushes the water into the concrete. Concrete, while very strong, is also somewhat prone to allowing leakage from hydraulic pressure. There is no hydraulic pressure on the inside of the pipe, as the pipe serves as a conduit to carry away the waste water.

If you were to ask the questions, or do the research, you will also find that no one is "cutting into pipes". They enter through maintenance holes - already in there for "MAINTENANCE".

I know you hate this expense, but I think maintenance now for a further 50 years of service is an investment in our taxpayers' future. Neither you or I will be around then, so consider it a legacy.

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I read the post again to see where I might have given the impression  I am a civil engineer and I know more than most .

Most of the post  is about questions asked and not answered.

If  a fiberglass liner keeps groundwater from seeping into sewer pipes, why are sewer pipes not made with with fibreglass liners? Why should they be inserted after the fact at additional cost to taxpayers of millions of dollars.

We've been doing it for ten years. 

The theory has never been proven . There is no method for  doing so.

Even it it worked, why would  prevention of ground water entering the sewer pipe be considered  maintenance ?

Sewers  have been  transporting sewage for hundreds of years.
It's a  simple process. Not much to improve upon.

Storm sewers run alongside sanitary sewers. Their  purpose  to carry away rain water and snow melt to  streams and rivers.

Storm water ponds are constructed at a cost of  millions of dollars , theoretically to  catch water running off roofs and roads,  and remove sediments before they reach the creeks and rivers.

The objective is to cleanse lakes which are polluted in the main by agricultural fertilizers and organic waste from rural areas. 

A bucket and spade,,, a sandy beach and a body of water is enough to teach even the youngest child  the basic principle of how water flows.  

On the other hand, threading a  fiberglass liner inside a pipe to stop water from seeping  from outside,  now that's really complicated science. 

Only civil engineers can be expected to understand why taxpayers money needs to be spent that way.

A paternal pat on the head is all the average elected representative 
needs to be assured  public funds are being spent wisely

Heaven forbid  the modern oracles should be challenged. to justify nonsensical  and extravagant theories.