Any Water pump with Auto on/off using Water gun

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Deal Subedar
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Any Water pump with Auto on/off using Water gun
As bike/car washer motor automatically on/off once we triggered on/off the sprayer in tube but is there anything for water pump 0.5hp mostly,
As most of the guys in our area using water pump and wasting TWICE the amount of water they actually put in their house/vessels due to NO on/off like Bike washers..

is there any please give suggestion to save water

offtopic:
my idea is better use bike/car washer, it off motor when we released trigger and save water still we put tube in next vessel but water flow is very low and high pressure.

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Bhai, no offense, but couldn’t understand what you are trying to ask; maybe add a translation in Hindi or whichever language you are comfortable for better clarity…

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BlueFlash wrote:

Bhai, no offense, but couldn’t understand what you are trying to ask; maybe add a translation in Hindi or whichever language you are comfortable for better clarity…

in simple language :
slum people or middle class people have water pipes outside of house, 1 pipe for 10 house and they use 0.5 hp water pump to pull water (not illegal in our area and allowed)

just like petrol pump trigger on/off like anything for water pump so once we release trigger it off motor and water stop, once we pushed trigger water come out ? as they waste twice the amount of water during changing water tube to other vessel or pot.

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desibuddy wrote:

in simple language :
slum people or middle class people have water pipes outside of house, 1 pipe for 10 house and they use 0.5 hp water pump to pull water (not illegal in our area and allowed)

just like petrol pump trigger on/off like anything for water pump so once we release trigger it off motor and water stop, once we pushed trigger water come out ? as they waste twice the amount of water during changing water tube to other vessel or pot.

ohk, now I got it (y)
So you want something like this:
https://www.amazon.in/INNAV8-Expandable-Garden-...
but the issue with this is when you open it, it will be high pressured and low water flow; you may want to remove the front nozzle part of it which disperses (spray jet thing) the water.
But do note that if you stop the water and pump is still on, it will put some pressure on the pump which might not be good in the long run.

P.S: You can prefer this too:
https://www.amazon.in/GERBERA-Professional-Perf...
this one has the option to remove the front nozzle; which will pour the water like normal; no high pressure and normal water flow (although slightly costly)…. maybe check in the local market for a similar device.

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I have similar requirements. I searched several ways to handle this situation. I even tried to think several jugaad ways to handle this foolproof, but gave up.

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BlueFlash wrote:

ohk, now I got it (y)
So you want something like this:
https://www.amazon.in/INNAV8-Expandable-Garden-...
but the issue with this is when you open it, it will be high pressured and low water flow; you may want to remove the front nozzle part of it which disperses (spray jet thing) the water.
But do note that if you stop the water and pump is still on, it will put some pressure on the pump which might not be good in the long run.

P.S: You can prefer this too:
https://www.amazon.in/GERBERA-Professional-Perf...
this one has the option to remove the front nozzle; which will pour the water like normal; no high pressure and normal water flow (although slightly costly)…. maybe check in the local market for a similar device.

He wants the control at the nozzle gun, so that no pressure build up issues etc.

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BlueFlash wrote:

ohk, now I got it (y)
So you want something like this:
https://www.amazon.in/INNAV8-Expandable-Garden-...
but the issue with this is when you open it, it will be high pressured and low water flow; you may want to remove the front nozzle part of it which disperses (spray jet thing) the water.
But do note that if you stop the water and pump is still on, it will put some pressure on the pump which might not be good in the long run.

P.S: You can prefer this too:
https://www.amazon.in/GERBERA-Professional-Perf...
this one has the option to remove the front nozzle; which will pour the water like normal; no high pressure and normal water flow (although slightly costly)…. maybe check in the local market for a similar device.

That won’t work bro with continues pressure from motor if the outlet is closed it might burst the pipe or the joints or can create any other damage.
There’s need to close the pump along with outlet but I am afraid motors will not be able to handle such frequent power on-offs it might damage the motor.

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andromeda wrote:

He wants the control at the nozzle gun, so that no pressure build up issues etc.

@Ash-D Yes I got the second half of the problem; but as you said, this needs some next level DIY-Jugaad stuff… can’t think of any way to solve the pressure build up issue; One over engineering PoC solution that can be done would be something like add a sensor to the gun such that when the nozzle is pressed to eject water; that time it sends out the signal and the motor is switched on using the receiver part; not a practical solution though.

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How about you put a T just before the nozzle, so when u shut the nozzle off and assuming the pump still running, the flow goes through T to a pipe or pressure relief valve and then finally to a tank

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BlueFlash wrote:

@Ash-D Yes I got the second half of the problem; but as you said, this needs some next level DIY-Jugaad stuff… can’t think of any way to solve the pressure build up issue; One over engineering PoC solution that can be done would be something like add a sensor to the gun such that when the nozzle is pressed to eject water; that time it sends out the signal and the motor is switched on using the receiver part; not a practical solution though.

If the delay between closing and opening of motor is not too short then a very simple system with a Relay can be easily used to achieve it.
But not sure the long term affect of it on motor as I don’t thik these ac motors are made for such fluctuations
Another way I see is to control the power supply from Motor to the pump so an electromagnetic actuator can be used to stop the mechanical power to the pump(motor will keep running) or to stop it via a clutch mechanism (just like a bike or car) there can be numerous ways for it.
But yes as you said it’s not something factory made a lot of diy and work will be required to achieve the goal.

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BlueFlash wrote:

@Ash-D Yes I got the second half of the problem; but as you said, this needs some next level DIY-Jugaad stuff… can’t think of any way to solve the pressure build up issue; One over engineering PoC solution that can be done would be something like add a sensor to the gun such that when the nozzle is pressed to eject water; that time it sends out the signal and the motor is switched on using the receiver part; not a practical solution though.

Yes, but considering the user base, it is not a viable solution.

If one is curious about the sensor part, they may explore Hall Effect Bipolar sensor.

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Op may consider raising funds to setup some kind of water storage with a tap.

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andromeda wrote:

Op may consider raising funds to setup some kind of water storage with a tap.

This is only viable solution, motor on/off with each vessel will surely damage motor and eventually more expensive than water wasted
One can set up very small 100 ltr tank even at bare minimum height with auto start system like in overhead tanks so motor starts when water level goes below 20ltr

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something like above but in AC power and more powerful 0.5hp motor, have to ask local motor supplier, i am sure coimbatore guys must have solution for this as they supply all over india.

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desibuddy wrote:

something like above but in AC power and more powerful 0.5hp motor, have to ask local motor supplier, i am sure coimbatore guys must have solution for this as they supply all over india.

The first video is based on air compressor, and the second is a small diy/hobby project. In your actual scenario, you will be dealing with an induction motor.

Some take aways:

  1. Life of motor drastically comes down with frequent on/off.
  2. More than that will be the power bill. Induction motors take huge amount of power every time they start.
  3. Lastly, if you go for a simple on and off control near the water gun, it is going to be a safety affair since high voltage and water doesn’t synch well

Do keep us posted if you happen to come up with any solution

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