Need a bigger pump to make the spray work better, it doesn't squirt far currently?

We're often contacted by people wanting to get a bigger pump so the application rate can be improved or spray further.

While that sounds easy and it should be right? sometimes it isn't the pump at all. Let me explain, have you ever noticed when you turn on the garden hose  and the water flows out the end in a free and easy manner? it fills a bucket in no time, but it can't squirt the water far. Why is this? There's plenty of flow, you've just filled the bucket quickly. There's enough pressure to right? Of coarse the local water board says its 3 Bar (or there about) so whats the problem why can't the hose squirt far?

Lets go back to childhood times, as a child we learned to put our finger over the end of the hose and all of a sudden the water squirts further we could squirt our Brothers or Sisters (fun times)

So what did you learn as a kid? what does it mean to this? when you put your finger over the end of the hose a restriction is caused. This blocking the hose causes the pressure to rise, the flow actually reduces somewhat and the water squirts further.

The same effect is required when spot spraying particularly when using 12 volt pumps they have low flow rates, nozzle sizes can easily be to large for the pump capacity. (note 12v pumps are rated at open flow this can reduce dramatically under pressure) When the nozzle size is to large for the pump there's no restriction meaning there's no increase in pressure to push the spray out.

So the moral of the story is when looking at pumps firstly consider;

What flow rate your spray gun in requiring? measure it into a bucket for a minute and compare it with the pumps capacity

If it's a 12 volt pump, does it cycle on and off? if not maybe the pumps to small or the spray gun nozzle is to big?

Similarly if the 12 volt pump is constantly cycling on/off then putting a bigger higher volume pump on alone will do nothing for solving your problem, you would benefit from a higher pressure pump not higher volume.

Here at THE CO-OP we have a wide selection of pumps and spray guns that can be matched to suit various applications. From the small 3.6 litre/min pump right up to the 15Bar 7.6l/min 12volt pump which is simply brilliant many applications. But when it comes to Contractors that are looking for 12 volt powered pumps that deliver in longevity and performance you can't go past the Imovilli M25 12 volt

Note: THE CO-OP recommends using appropriate safety ware at all times when handling chemicals and application equipment (don't put you thumb over the end of the hose)