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Reinf. Conc. Vault for Flowmeter

Reinf. Conc. Vault for Flowmeter

Reinf. Conc. Vault for Flowmeter

(OP)
I need to contruct a concrete vault over an active 30-in PVC C-900 wastewater force main.  The flowmeter will be a strap on.  My question concerns the pipe/wall penetrations.  Because the walls will be poured around the existing force main is it ok for the new concrete to poured dircetly against the pipe or should I make arrangements for there to be some space between the new concrete and the pipe?  If a spaace is required, what is a good technique for sealing around the pipe?

thanks

RE: Reinf. Conc. Vault for Flowmeter

http://www.linkseal.com/

I recommend isolating with Link-Seal or comparable system.

Someday the pipe may need to be "fixed"

RE: Reinf. Conc. Vault for Flowmeter

You should use a flexible rubber boot around the pipe. You should think about adding a sump pump since the meter may be ruined by ground water intrusion.

RE: Reinf. Conc. Vault for Flowmeter

pre-cast doghouse is the way to go. you should be discussing this with your local pre-caster who can probably answer all your questions.  

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