1 reply to this topic

[EricTan]

Dear all,

Where can i find information on the design of water storage tank inlet? Besides that, what is a dip tube in a storage tank and the importance of siphon breaker?

Thank you

[djack77494]

Eric,
I can't imagine what information you seek regarding the inlet to a water tank. In general, tanks are sometimes equipped with diplegs or diptubes to minimize "free fall" of the liquid. Especially for hydrocarbon liquids, this could be bad as it can generate static charges that can lead to a spark/fire/explosion/etc. For water and most other liquids it's just an issue of agitating the tank contents which can interfere with accurate level measurement (although this can be addressed with a stilling well). As to the siphon breaker, let me say this. If you have a problem upstream that results in a loss of containment, then the contents of the tank would be free to backflow out of the tank and (say) onto the ground. You could empty the contents of the tank down to the elevation where the break is. Unless you have a siphon breaker, which could be just a 1/4" or 5mm drilled hole in the diptube. That small measure eliminates this concern.