My Building is 115 meter high. Can I use a Booster Pump at Basement and other at 55 meter level to avoid Tank?
114610
i agree with an intermediate tank , also u can use multistage centrifugal pump , with pipes greater at least one size specially for suction , ur hight is not critical , we can go to 250 m .
3535
well, (heh),\n\nlifting a mass m of anything a height h against the force of gravity requires an amount of energy that is equal to E = mgh, where g is the acceleration of gravity - 9.8 m/s^2.  \n\nthe power comes from dividing by how long it takes to do this - power is energy / time.  so P = mgh/t.  that means the pump requires that much power to do so.\n\nso, if you decrease h in the above equation, the power goes down.  it is a linear relationship, so if you halve the height over which you are pumping, you halve the amount of power required.\n\nnote that this ignores the frictional nature of water, which is reasonable if the water is not moving very fast in the pump or pipes.  if it is, you have a more complicated problem.
700988
I have been through a Tornado. We moved down into the basement. Do they have anything underground in your building? Storage or parking? I would go down as low and you can in the building and stay in a doorway.\n\nIt has been several hours since you posted, I am wondering if everything is ok now.
196253
I don't think it is a good idea due to the compresser.  You could ask someone like at a Lowe's or Home depot store but, I really don't think you are supposed to.
436333
First find something fibrous like a carpet, a fuzzy carseat, or something else like that.  Rub your clothing on it for a good bit.  Make sure you aren't standing on or around something metal or it'll ground you instantly (thus negating any charge you'd build up).\n\nAdditionally, a factor that you have little control over--you must be in an area that has relatively low ambient humidity (<<10%).  If you live in a Rainforest, for example, pretty much nothing you do will generate enough static to create a shock.  Good luck and happy shocking.
651250
It depends on where you live. Some flower shops also sell balloons and will inflate them,a balloon shop, sometimes a Hallmark store, some Wal-Marts have helium tanks. Just check the yellow pages of your local phone book. You should be able to find some place that will do this for you.
941013
Hi. The most efficient way would be to bypass the power to the pump used to raise the water in the first place and use it directly. This would eliminate friction losses and generator losses.
650341
Before and during construction period of the basement, you have to perform "dewatering" the surroundings, i.e. pumping the water 24 hours a day until the surface is lower than the foundation. On the outer side of the basement concrete, you must place water-proofing sheet before cementing them. However, since the water will give huge pressure to the basement, you have to divert the force by either using  submersible pump(s) to pump out the water automatically when it reaches certain level, or make drain(s) to the lower level, for example to the river down hill, if the situation is suitable.
99895
45 seconds on pumpers greater than 1250 gpm otherwise its 30 seconds on 1250 or less
260188
DO NOT do that!  It would be dangerous (creates a fire hazard), and one of the protective devices (fuse or circuit breaker) would probably trip under load regardless.
311098
Not very much.  The water pressure on your body would prevent you from being able to bring in air that is at normal atmospheric pressure.  You need a compressor on the surface and a hose to breath from.
1024860
If you are worried about getting busted for a cultivation operation, your main concern would be the smell and the power used for the lights.  If you use several grow lamps, your energy usage will increase significantly and it could set off a flag.\n\nIf you are using a single lamp for a plant or two in your basement, then you have nothing to worry about.
60954
It depends on usage. You know that there are two main things in pump, Head and Discharge, and we have a rating curve for these two parameter. If you want to send water to higher elevation, you can send less water (Decrease Discharge) and vise-versa.\n\nin normal case and normal usage, we have some pumps around 2 lit/sec for a very low high to around 2000 lit/sec. Pumps that are used in wells is around 30 to 50 lit/sec.\nBut I advice you to chose apropriate pump by rating curve.\nOne of the largest company in pump industries is KSB. You can find more information in their sites. Below:
258881
Yes, you can use a warm compress prior to pumping. The other thing you can do is get into a warm shower or bath.\nWorks Great!
282056
It is difficult to say without further details, but you could use a centrifugal pump or even a progressive cavity pump.  This is because of the high-head, low-flow you are likely to encounter.  \n\nThe PCP would provide a substantial amount of pressure without the pulsations you would get with a positive displacement pump.  You would have to provide over-pressure protection.\n\nGoogle "filter press" centrifugal "progressive cavity pump"
971502
you need a pressure vessel, ie gas tank, ISO tank etc. you have to force this in eithermachanically or by vacuum. (not hoover).
593326
Just use a garden hose.  Turn it on medium blast.  Works everytime.