Sprayers and Equipment FAQs

We have a wide range of spraying equipment to suit all requirements.

Generally the compression sprayers are a smaller capacity and are carried at the shoulder with a pump at the top. Some of the compression sprayers have optional back-straps so that they can be worn on the back. The knapsack sprayers are larger capacity, are worn at the back and have a handle at the side for pumping.

Check the pH of the chemical that you are using and if you are intending extended use of acids or alkalines then you can choose chemical resistant equipment. Obviously the pH of a product is not the only consideration when deciding which is the most suited sprayer as it is the main active ingredients that are going to cause any issues. If you need any help selecting a sprayer then just contact us and we will advise on the best options.

A knapsack sprayer (also known as a backpack sprayer) is carried on your back. A compression sprayer is cylindrical in shape and is normally carried on a shoulder. Which sprayer is the best for you depends upon the type of work you are doing. Knapsack sprayers generally have larger capacity tanks and are designed for spraying large areas as opposed to compression sprayers that can be used for any type of job, either large or small.

One, very important, point to remember when deciding upon the design of sprayer is that, with a majority, of knapsack sprayers you are not compressing the air within the tank rather it is compressed within the compression cylinder that is inside the tank. This means that you have to compress the tank (pump the handle) far more often and, almost, have to 'pump to spray'. We do, however, have three models that can be pressurised to 6 bar (twice the normal maximum pressure) meaning that, once you are at working pressure, you won't need to pressurise as frequently as a standard model. These sprayers are our RS12, RS18 and RS18 Alkaline.

If you are looking to climb ladders or use telescopic lances, with your sprayer, then it may be advisable to consider a compression sprayer (unless you use the RS range) otherwise you will need a hand to pump the tank and another to hold a ladder or two others to hold a long lance. As the average number of hands, per person, is less than two you can understand why using some knapsack sprayers could be awkward.

Good electric sprayers are good.  This doesn’t mean that all electric sprayers
are good.  As with everything, you get
what you pay for, so look for the highest quality sprayer that meets your budget or spraying requirements.  Buy from a reputable supplier who is knowledgeable about and understands the sprayers, and who can be easily contacted. Ask questions of the supplier and read the information that should be on their website.  Check the manufacturer, as good electric sprayers are complicated in their design, so you need to be sure that they have been constructed with quality materials and have high-quality batteries.

To extend the original question, one could ask if electric sprayers are any good at spraying and to this the answer would be yes.  There is nothing wrong with either the spray pressure or spray pattern that the electric sprayers provide.  As with manual sprayers, you should check that the electric sprayer matches your spraying requirements, and this technical information should be easily found.  We show all of the spraying information for each of our electric sprayers, as well as the spray patterns and chemical resistance.    

The easy answer is that our telescopic lances will fit all the sprayers (apart from the hand sprayers) that we show on our website, both compression sprayers and knapsack sprayers. Some of the units will need a small connector but other than that you can use any of our sprayers with the large telescopic lances. The technical information of each sprayer will confirm if a connector is required or not.

If you are looking to connect our lances to a sprayer that you already own, we can't guarantee that they will connect with or without one of our connectors.

As each manufacturer of spraying equipment tends to have different threads and sizes, there is no guarantee that the 5.4-metre or 3.2-metre telescopic lances will fit any sprayer on the market.

The lances will fit all of our GOIZPER and IK sprayers as well as our electric rechargeable sprayer and Mesto sprayers however, the lances will require a connecting hose if being used with our Mesto sprayers or rechargeable sprayer. We recommend that you purchase a bundle with the lance which includes a hood and a directional tube with the connecting tube.

The pressure needed when spraying a liquid depends upon the product being sprayed and the circumstances in which the sprayer is used.

Many commonly used domestic products will not require a high pressure sprayer, perhaps only 3 BAR or even 1.5 BAR. However, thicker liquids will require more pressure.

Just because a sprayer can work up to a certain pressure, this does not mean that it must be used at that pressure. Some of our sprayers are fitted with specialist pressure gauges, allowing the user to choose the pressure that best suits them and the ideal pressure for the product being used.

We not only carry the entire range of Mesto sprayers but all of the accessories and spare parts. Which ever part you wish to replace (or you want to have a spare, just in case) then we can help you. As long as we know the model of the sprayer then we will be able to identify the part for you. Even if you don't know the model, with some simple questions, we will soon find out.

There could be several reasons why your sprayer is leaking air or why you can’t build pressure within your sprayer, but the first thing to check for is damage.  This may seem obvious, but the smallest crack can lead to air escaping, meaning that you will not be
able to build spraying pressure.

When looking for damage, don’t just look in the obvious places, such as at the tank, the spray hose or the nozzle.  If these parts of your sprayer have sustained damage, then you will have probably noticed it anyway.  The hidden damage could be to any of the threaded connectors, such as those holding the hose or spray lance in place or to the threaded handle of the spray gun (stop valve).  If these connectors are over-tightened or trodden on, hairline cracks can be caused, which, in some instances, can lead to either air or liquid (or both) leaking.  Another cause of leaking air or liquid could be faulty or damaged seals or O Rings.  Every mechanical connecting point between two hard surfaces will have a seal or O-Ring. As a result of general wear & tear, lack of maintenance, or chemical incompatibility, these seals can become worn or damaged, leading to leaks.  Check these parts, if possible, remove them and wipe them whilst inspecting for damage. If there is visible damage, then they should be replaced.

Many of our sprayers have a rubber valve at the base of the compression shaft. This is a one-way valve and allows air to be pumped into the tank, but it will not allow air or liquid to escape.  This valve is very hardworking, so it will slowly wear and can also easily sustain damage if an incompatible chemical is used in the sprayer.

Finally, the air release valve can become worn and will leak air if not changed.  Normally, this valve is used to release pressurised air from the tank when spraying is finished, but it is a safety device that automatically releases air once the pressure within the tank goes above the stated maximum.  The valve also moves when the pressure within the tank increases and decreases, so the valve will wear over time.  This valve
is easily removed, it can therefore be checked for damage and replaced if necessary.

 

To summarise, if you are having problems with pressurising your garden sprayer, then check for damage, check the seals and valves and replace any parts that are damaged.  To reduce the possibility of damage resulting in the sprayer being unable to be used, we recommend keeping the sprayer clean, flushing the tank after use, allowing the inside of the tank and hose to dry properly and checking the seals and O Rings from time to time.  If you do have a damaged part, then we have a full range of spares for all of our sprayers, so you will be able to easily repair your sprayer and it will be ready to spray for many years to come.

In order to push liquid out of the tank, pressure must be built up. Room is left within the tank for air, which is pressurised prior to spraying. The difference between tank size and working capacity is to allow for this.

When buying a sprayer, it is worth considering the fact that more pressurised air within a tank (or a greater difference between tank size and working capacity) means longer spray time before one must stop and re-pressurise the tank.

It is also crucial to know the working capacity of a sprayer, not just the tank size, as this is the maximum level to which the tank can be filled and still function properly.

The best backpack sprayer for weed killer depends on the amount of weed killer being sprayed and the frequency of the spraying. If the area being sprayed with weed killer is relatively small, up to 100 square metres, and is to be sprayed infrequently, our IK12 backpack sprayer would be a good option. It offers low cost, good build quality, and requires minimal setup.  It has a 3-bar spraying pressure and can be used with a range of accessories that can make the spraying process even easier, such as multi-nozzle spray booms and spray lance extensions. This backpack sprayer gives you everything you need to spray weed killer, as well as many other chemicals, such as moss killer and cleaning solutions.

If the spraying area is over 100 square metres or the sprayer is to be used regularly, then the best backpack sprayer for weed killer would be our RS12 or RS18 sprayers, as they combine a superior build quality with a fill capacity up to 18 litres. These sprayers also benefit from a maximum spray pressure of 6 bar, which is double that of the IK12 backpack sprayer and the vast majority of other backpack sprayers.

Another question, however, could be which is the best ELECTRIC backpack sprayer for weed killer?  For this, we recommend our Met range of battery-powered knapsack sprayers, which have a capacity up to a large 20 litres, and you can spray up to an impressive 400 litres per charge.  Our electric backpack sprayers are a great choice for spraying weed killer over large areas, as they remove the requirement of manually pumping the sprayer to maintain spraying pressure, so operator fatigue is kept to an absolute minimum.

Our Electric Sprayers are either charged directly to an outlet, such as the Matabi e7, or is supplied with a 18V lithium-ion battery, such as the Electric Mobile Sprayer.

We offer separate Goizper Batteries, suitable for all of our battery powered electric sprayers, as a replacement for the original or a spare to keep a fully charged option on hand.

We have made a short video 'Charging your Electric Sprayer Battery' to answer any queries you may have.

Whilst our extensive range of compression sprayers and knapsack sprayers give you a whole host of options that will satisfy the requirements of most people, there are always some customisation that would make a, very good sprayer, perfect.

So, we are able to offer a number of variations to some of our sprayers such as different handles, longer hoses, additional lances or a selection of different nozzles. We recently helped a customer who bought one of our PROFI PLUS sprayers but wanted an additional, longer hose. The sprayer is supplied with a 2.5-metre hose but, because of the type of work the customer needed to complete, they wanted the longer length which would enable them to stand the sprayer on the floor and walk to the areas that needed to be sprayed. We supplied the longer, 5-metre, hose and their work was made much easier.

Some of our sprayers will show modification options but, if you can't see the option that best suits then just CONTACT US and we can discuss your needs.

For a visual explanation, watch our 'How to Connect a Telescopic Lance to your Sprayer' demonstration video on our YouTube!

As tempting as it is to pull everything out the box when it arrives, have a read of our Unboxing & First Use of your Sprayer blog post for our not-to-miss tips!

Electric sprayers are our most complex machines, with many technical components that create a higher chance of defect. Due to their complexity, we have created an Electric Sprayer Troubleshooting Guide if anything should appear faulty, simply follow through the steps to find an easy solution.

If the issue persists please Contact Us

We stock batteries for all of our electric sprayers so you can easily have a battery that you can use as a spare battery or a replacement battery.