Browse Forums Eco Living 1 Dec 22, 2016 4:31 pm Hi, We've just moved into our new house. Our tanks are connected to the toilets and washing machine. I've noticed everytime we flush it is quite noisy. I'm worried because it is quite close to the fence and neighbours' outdoor area. Does anyone have any ideas for noise reduction? Regards, Limefroggy Re: Noisy water pump from rainwater tank 2Dec 22, 2016 4:51 pm I assume that it is an external pump. If so, does it have a well ventilated cover? Is it a turbine, jet or centrifugal pump? What does it sound like? Not a rumbling like gravel going through it I hope. If so, how is the suction hose attached to the pump, have they fitted a 90 degree elbow to the pump at the end of the suction hose? 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: Noisy water pump from rainwater tank 3Dec 22, 2016 11:16 pm Thanks for your reply. I have to check what type of pump it is. The sound is like an electronic humming. It does have a cover over it which has spaces and gaps so I assume it is ventilated. Regards, Limefroggy Re: Noisy water pump from rainwater tank 4Dec 22, 2016 11:36 pm A turbine pump has a higher pitched sound than a centrifugal pump...it sounds very 'busy' and fast. A jet pump is a tad noisier than an equivalent pressure pump but it is not high pitched, more of a dull water sound. That is normal because jet pumps have greater suction than the usual pressure pumps and the noise is the result of how the additional suction is achieved. The noise to be alarmed about is a rumbling sound like broken marbles because that indicates cavitation. The pump should be on a solid base but they should also have dampers under their support base to eliminate resonance. If it is on a concrete base, just put a rubber mat under it and see what happens. 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: Noisy water pump from rainwater tank 5Dec 24, 2016 12:54 am Thanks for the advice, I will try the rubber mat. Regards, Limefroggy 18 90494 DIY, Home Maintenance & Repair But if it is a ground level open pit, then it is not a charged system. No surprises there. The pipes have obviously been altered and there would be a reason for this.… 3 31282 Grate, thank you! RexChan if thats the reason i could sleep well without thinking about additional cost. But 1st i'll need to read about NRV cleaning/replaing stuff. I… 7 31158 |