Jarmet sprayers

[Geoffreywrc]

Hi folks
Was thinking of purchasing a jarmet 400 litre sprayer as I only cover a small amount of acres per year, around 30.
I seen one working where farmer was spraying and seem to be mixing at the same time and there was a tapping noise.
Is this normal or should mixing all be done prior to starting to spray.
Also what bar should you spray at.
I've my pa1 and pa2 booked but covit 19 put payed to it for now

 

[ridger]

Pressure would depend on how much water your looking to put on how many acres using which nozzles. Any jarmet iv seen if you got any pressure at all you were lucky, better buying a good used knight or get or even Hardi off @Dave W

 

[David.]

I dont understand mixing at same time?
Very basics are half water in tank, add required chemical, add remainder of required water, agitate to mix properly before spraying.
Easiest place to start is at 200 litres per ha, at forward speed of 5mph/8kmh, with a spray pressure of 3bar.
This is the standard reference application rate/ ground speed/ pressure reading for all nozzles in the charts, and a good place to start from, being acceptable for most treatments.
Agree you would be better with a very tidy used mainstream machine with a current Nsts cert' though.

 

[ridger]

The pump usually taps away on a jarmet not that it seems to achieve much, it would be mixing when spraying because the water would be sloshing about and the returns from spray lines would be going in tank

 

[Al R]

The pump usually taps away on a jarmet not that it seems to achieve much, it would be mixing when spraying because the water would be sloshing about and the returns from spray lines would be going in tank

im n it sure if they’ve got recirculating booms ?‍

 

[David.]

The pump usually taps away on a jarmet not that it seems to achieve much, it would be mixing when spraying because the water would be sloshing about and the returns from spray lines would be going in tank

OP's first paragraph doesn't read like that though... sounds like he's running alongside chucking a can in occasionally.

 

[neilo]

The ‘tapping’ will likely be the wrong air pressure in the damper on the pump? My little TadLen used to be quite hard to get the pressure right, so was always tapping in use.

 

[Deutzdx3]

Don’t bother. More hassle than they are worth. Biard are much better. Leaks, copy comet pumps which are pants, just cheap crap.

 

[Werzle]

I am thinking of getting a jarmet sprayer for doing odd clumps of docks,nettles and thistles. Contract sprayers will not entertain putting the correct amount of water on and it shows in the lack of longterm weed kill. They all think they can get away with 150ltrs when product labels say 300-400.

 

[2wheels]

I am thinking of getting a jarmet sprayer for doing odd clumps of docks,nettles and thistles. Contract sprayers will not entertain putting the correct amount of water on and it shows in the lack of longterm weed kill. They all think they can get away with 150ltrs when product labels say 300-400.

depends on the nozzles used. if there is not too much vegetation competing with weeds regarding leaf area the same results can be achieved with a lower water rate and the correct nozzles.

 

[Werzle]

depends on the nozzles used. if there is not too much vegetation competing with weeds regarding leaf area the same results can be achieved with a lower water rate and the correct nozzles.

Sward is always fairly dense and needs plenty of water coverage to get good results. 600ltre jarmets around £1500 and job can be done correctly

 

[steveR]

Don’t bother. More hassle than they are worth. Biard are much better. Leaks, copy comet pumps which are pants, just cheap crap.

The Jarmet are simple, unsophisticated and inexpensive sprayers, but for a few acres of grassland, would do the job nicely. Put some "40 gal" jets in and perfectly adequate for the OP's needs.

I always used to run a main sprayer and a small 600l sprayer kept purely for spraying sugar beet, to save the mega cleaning down required after the use of SU herbicides. I am doing the same with the wee Jarmet I bought for 8-900 quid last year. No test needed for 5 years either

 

[Deutzdx3]

The Jarmet are simple, unsophisticated and inexpensive sprayers, but for a few acres of grassland, would do the job nicely. Put some "40 gal" jets in and perfectly adequate for the OP's needs.

I always used to run a main sprayer and a small 600l sprayer kept purely for spraying sugar beet, to save the mega cleaning down required after the use of SU herbicides. I am doing the same with the wee Jarmet I bought for 8-900 quid last year. No test needed for 5 years either

They are put together poorly. Biard are better machines, put together better. We sold Harley for a year and stopped as every one that came in we had to do work on before it went out. Replacing bits that a brand new machine shouldn’t have needed replacing.

 

[Davy]

I got a 12m, 800L one 2 years ago for a bit of grassland spraying. 80-100ac per year is all, had no issue with it yet. For that job it's OK. It's a cheap basic sprayer

 

[ridger]

OP's first paragraph doesn't read like that though... sounds like he's running alongside chucking a can in occasionally.

And the rain pouring into the tank lol

 

[ridger]

I am thinking of getting a jarmet sprayer for doing odd clumps of docks,nettles and thistles. Contract sprayers will not entertain putting the correct amount of water on and it shows in the lack of longterm weed kill. They all think they can get away with 150ltrs when product labels say 300-400.

I work on 100 litres to acre lol so 250 to hectare

 

[steveR]

Hi folks
Was thinking of purchasing a jarmet 400 litre sprayer as I only cover a small amount of acres per year, around 30.
I seen one working where farmer was spraying and seem to be mixing at the same time and there was a tapping noise.
Is this normal or should mixing all be done prior to starting to spray.
Also what bar should you spray at.
I've my pa1 and pa2 booked but covit 19 put payed to it for now

Got one here I got to go on my compact sprayer last year. Works fine for the money.

Booms are shitty quality and you will be advised to grab a tin of galvanising spray paint... Also need to check nuts and bolts and invest in some Loctite. Buy and install in-line filters for all 3 booms, an easy fit and money well spent.

Your PA1/2 will sort you out on procedure, but 3 BAR is as much as you'll ever need in day to day spraying. 2 BAR for some jobs once you gain experience will work also, but need to watch the spray quality coming from the nozzle. Fill up with some water and go experiment... For what you want, the jets supplied in the machine will do your grassland spraying, if you need higher water levels (3-400l/ha) just drive more slowly.

Pump is noisy in agitation, but smooths off once in use. I have never underdstood why some people set up their sprayer/pump to be running at 540 rpm though. Seems bloody daft using more fuel and more wear on the pump and noisier to boot! If you have a simple tractor with no speedo, do your speed calibrations at a range of RPM and gears, aim for about 6-10kph and write it down and store safely...

As David has said, half fill, add chemical, agitate while filling (unless you have a real foamy chemical) and then off you go. If using most liquid grass herbicides, you do not need to keep agitating IMO, mix initially, then for minute before starting to spray.

 

[steveR]

I am thinking of getting a jarmet sprayer for doing odd clumps of docks,nettles and thistles. Contract sprayers will not entertain putting the correct amount of water on and it shows in the lack of longterm weed kill. They all think they can get away with 150ltrs when product labels say 300-400.

Guilty, as Charged!! Although I'd go to 200l....

Used to do one Ragwort job about 12 miles away, needed 1200l of mix putting on at 300l/ha, my tank was 1000l. No water on site or nearby. So you can guess what I used to do...

 

[steveR]

They are put together poorly. Biard are better machines, put together better. We sold Harley for a year and stopped as every one that came in we had to do work on before it went out. Replacing bits that a brand new machine shouldn’t have needed replacing.

Jarmet build is I agree, poor. No worse than some mainstream stuff I have bought over the years mind...

I asked two companies about a Biard sprayer, who were advertising them online, and neither came back to me last year...

Local Ag Dealers did not have any budget machines, and were sniffy about the Polish cheapies... probably as low profit margin!!

 

[Goweresque]

I bought a Jarmet for doing all the little odd bits the contract sprayer can't manage with his Bateman. But I did order the Arag electric controls as an extra. 8m boom split into 3/2/3 sections. Makes doing all the margins/game strips/little paddocks easy. You can also control the pressure from the control box so keeping that level is easier too. The pump does clatter, its always done that, no problems so far, 2 years in.