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We have an underground water storage tank (concrete) with two compartments; Tank 1 and Tank 2. Our fire pumps are vertical turbine type: 1 duty and 1 back-up. Both suctions of each fire pump are located only at Tank 1.
Is this code compliant? Or shall we relocate the suction of the back-up fire pump into the Tank 2? Thanks in advance. Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe
7 Comments
Glenn Berger
6/23/2023 08:08:35 am
Your design sounds code compliant. I am assuming that Tank 1 and Tank 2 are connected in a manner that the Tank 1 never can run dry.
Jesse
6/23/2023 08:18:35 am
I don't see a problem with that arrangement. I presume one pump is the back-up, or serves a different zone and the tanks are cross-connected? (i.e. tank 2 feeding tank 1).
I presume that you have 2 tanks for resilency. But with both suctions going into tank 1, if you have to take that tank out of commission you lose the system.
Alex
6/23/2023 08:42:42 am
Like others have mentioned, assuming the tanks are cross-connected, I do not see an issue 6/23/2023 08:55:37 am
Yes, it is complaint, but is it logical? What was the rationale for putting both pumps in one tank? If you have the option of improving reliability by essentially having two tanks and two pumps, why wouldn't you? This would permit you to take one tank out of service for maintenance without diminishing your protection. With the current design, taking Tank 1 out of service takes your fire protection out of service. Leave a Reply. |
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