Centrifugal pump water or difficult to start troubleshooting is as follows: ã€cause of issue】 (1) water pump irrigation dissatisfaction with water; (2) pump irrigation can not enter the water; (3) the valve leakage at the end of the valve closed; (4) bottom valve stuck by debris; (5) pump or suction pipe leak, vacuum pump pumping can not be a vacuum; (6) vacuum system failure; (7) vacuum pump insufficient supply of water or lack of suction capacity of the vacuum pump; Exclusion (1) Check the end of the valve and the suction pipe is leaking, the bottom of the pump emptying screw or valve is closed; (2) Pump casing top or vent valve is open; (3) a large number of irrigation, forcing the end of the valve closed, if not the end of the valve may have been bad. Must try to overhaul; (4) Check the valve and try to remove debris; (5) Check the suction pipe and connecting flange itself is leaking, tighten the packing gland. Check? 饫 æ·™? 玫 玫 玫 玫 玫 玫 玫 玫 玫 æ’ž æ’ž æ’ž æ’ž æ’ž æ’ž ç°Ÿ ç°Ÿ ???? ???? ???? ???? ???? ???? ???? ???? ???? æ¬ æ¬ åœ åœ åœ åœ åœ owed ┢ ┢ 穸 穸 due ow (6) check whether all valves in the exact position, whether the vacuum check valve failure; (7) increase the vacuum pump make-up water, but the influent is too large or too high pressure will affect the vacuum efficiency. If there is no problem with the water, check? Suchan felt hat old owe 裢 æ—° æ—° æ—°? ⑾ Governance ä¾ é¥§ 蘩 蘩 æš