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| 1. Electro-mechanical Device. |
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| 2. Level of water remains static for control |
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| 3. Electrical float switch with pump is submerged inside water witch again moves up and down. Possibility of leakage and there by electrocution of the whole water system causes danger to the uses. |
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| 4. Multiple electrical float switches required for overhead tank and reservoir. |
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| 5. Dry run of pump is a high possibility. |
