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constant noise comes from inside toilet even during not used...sounds comes 24 hours...I checked any water leaking inside toilet, but it seems like no leaking...very strange.... looks like some air sounds comes from water shut-off valve which controls water IN-Stop inside of toilet...

some noise comes from inside of 1~1.5" water pipe in my house's basement during water running period, it's like "PHeeeeeeeee" constant level pitching sound, pipe is brass one, is this normal? or something wrong? I noticed this phenomenon two months ago. thanks for your advices.

my water meter(2") is in vertical line, and some noises from it when water running, is this OK? or something wrong?

I have a small store and the water pressure is normally 40psi, my question is is this city water supply pressure suppose to sustain 40psi continulously? or it could be fructulated depending on water usage? IOW, water supply city line's pressure is 40psi, then this 40psi should be same all the...

Like below drawing, pump connects to tank and I need to control pump like this: (1) pump starts when pressure in pipe drop under 30psi, pump stops when pressure reachs 70 psi, and (2) pump stops when water in tank almost empty ( sensored by the float switch), pump starts when water full and...

Like below drawing, pump connects to tank and I need to control pump like this: (1) pump starts when pressure in pipe drop under 30psi, pump stops when pressure reachs 70 psi, and (2) pump stops when water in tank almost empty ( sensored by the float switch), pump starts when water full and...

if 2000G of water tank is located on the roof and the height is 14feet,then what is the water pressure in 2' pipe down from tank to floor? thanks

if 2000G of water tank is located on the roof and the height is 14feet,then what is the water pressure in 2' pipe down from tank to floor? thanks

which one is better? 1) put water storage poly tank(2,000) G on the roof and use natural pressure generated from the elevation of tank, which is around 25ft height 2) put the water tank on the floor and use pump&motor to provide water thanks

How to stop pump automatically(not mannualy) when connected water storage tank near empty? I understand dry running of pump is not good, so I need to shut-off pump when the storage tank almost empty... Is there some sensor to do this?

How to stop pump automatically(not mannualy) when connected water storage tank near empty? I understand dry running of pump is not good, so I need to shut-off pump when the storage tank almost empty... Is there some sensor to do this?

Can Float Valve in the water tank shut off in-coming water line of 40psi city line? thanks

Can someone recommend 7HP jet and cetrifugal pump which has 3" connector? what's the pro and con between jet and cetifugal pump? Thanks

In storage water tank, what kind of valve we can use to shut-off water in-let when tank is full? ( maybe dead rock valave??)

Is there any head loss ( pressure drop/loss) when water runs through a check valve(back-flow preventor)? thanks

what kind of pump and bland pump is the calmest and no-noisy and smooth pump? thanks

what kind of pump do I need to install? In order to provide 100GPM of water from storage tank through 2" copper pipe, what HP pump needed?, with 50PSI.... Thanks,

what kind of pump do I need to install? In order to provide 100GPM of water from storage tank through 2" copper pipe, what HP pump needed?, with 50PSI.... Thanks,

Hi there, I have a car-wash business and sometimes I experience the water shortage problem(low pressure), so, I am considering the installation of tank and pump to cover the peak time usage. can anyone tell me what kind of tank and pump needed? do I need normal atmospheric tank? or prssure...