pre cast concrete valve box

[Alula]

Hello,
I want to write a proposal about potable water pre cast concrete valve box, to show how advantageous over cast in-situ/ in-place/ valve box/ chamber/, and present it to my office as they are preferring cast in-situ valve box most of the time.
1-Do any one have that proposal or any that can help?
2-What is the best pre cast valve box or design?
2-How to protect ground water leakage to that valve box?

 

[coloeng]

How do you know that a precast vault is better than cast-in-place? Do you have a local supplier that can provide precast? What are the costs to get a precast vault installed? Is there equipment available to set a precast vault?

Those are some of the questions you have to answer in order to develop your proposal.

The relative merits of precast over cast-in-place are very dependent on your location.

 

[cvg]

the advantage is in schedule and quality control but precast might actually cost more. water may get in where the pipes go through the structure wall and a neoprene boot or linkseal can be used to keep most of it out.