How To Increase GPM For Sprinkler System? 2 Easy Steps!

Are you having trouble thinking about how to increase GPM for sprinkler system? Getting a larger pipe or buying a new sprinkler system is an option. It may 

Water sprinklers can be used in many ways. You can use it for gardening, watering your golf course, or for emergencies like fire. 

Water sprinklers could work wonders in so many ways. 

Well, the more water it could hold would also mean more water it could deliver.

To increase this, you will have to increase your water tank’s GPM. 

Lucky for you, as we’ve laid down the things you should do from measuring to increasing your tank’s GPM and the disadvantages of having a larger GPM.


how to increase GPM for sprinkler system

What Is GPM?

GPM stands for Gallons per Minute; it is the standard unit of measure of water flow. 

It is a measurement of how many gallons a pump can move every minute.

GPM is based on three head measurements—this refers to the height:


  • Total head

It is the discharge point for the fluid.


  • Total suction head

This is the height measurement between the fluid source and the pump.


  • Total discharge head

It is the height from the pump to the highest point the water will get pumped.

GPM is used to identify the unique capabilities of a pump so you can select what you need. 

Pumps with higher GPM is needed in large public areas such as golf courses,

Suppose your pump specification reads as 150 GPM at 50 feet of head.

This means that the pump can deliver 150 gallons of water per minute at the height of 50 feet.


Steps In Calculating GPM

Before you can increase the GPM, you should know how to measure it first. 

And what do you think you should know first? Of course, the pressure tank’s specifications!

And specifications have various inclusions such as the gallon drawdown, the capacity of the gallon, and the PSI

The manufacturer will specify the gallon drawdown, and all you have to do is to find a stopwatch and keep a time check. 

Take note of the following steps:


Step #1. Emptying

You will have to empty your pressure tank first. That way, we can measure the gallons it will hold at the beginning.


Step #2. Timing

Using the stopwatch, read the time as the pressure tank will turn on. 

To do this effectively, start the stopwatch as soon as you hear the pressure switch turn on. 

Then stop the stopwatch when your pressure tank switch turns off.


Step #3. Measuring

In this step, you already know the time (recorded in your stopwatch) and your pressure tank’s drawdown amount. Divide the former by the latter. 

For instance, if it takes 4 minutes for the pressure switch to turn off, and the drawdown is at 20 gallons, this would mean that the pressure tank has a GPM rate of five.

Or, if you don’t have a pressure tank, you can also use a bucket instead. 

Using a bucket or container, fill the tank. With a stopwatch, measure the time spent in filling and divide that by the volume of the container or bucket used.


Increasing GPM For A Sprinkler System

So, how to increase GPM for sprinkler system? How can I increase the minimum GPM available in your sprinkler system? 

These questions might be circling your mind and bugging your sleep. There are several ways to increase their GPM, and here are some of them.


#1. Larger pipe

This is an obvious solution to the problem. If you want to increase your GPM, you will need a larger pipe. 

Have a water supplier install a larger pipe in your property. Although in most cases, this option will cost you or worse, this will not be possible.


#2. Forcing water

Another way to increase the GPM is to force more water into the existing pipe. 

Whether your sprinkler is automatic or not, having a larger sprinkler with more pressure on water would vastly increase its GPM.


Disadvantage Of Larger Flows

Some disadvantages come with having larger flows. Let’s take a good close look at these risks.


#1. Scrubbing

The velocity is the measurement of the speed at which the water is flowing through the pipes. 

The flow rate may seem harmless, but having high-velocity water flow inside the pipes could be a bad thing. This is called scrubbing.

This scrubbing is essentially wearing away your pipes. Imagine water as being abrasive, so it slowly tearing your pipes. 

Even though you have metal pipes, scrubbing is even worse when mixed with corrosion. 

Certain velocities are safe for every size of pipes. Staying in the zone should mean safety. So for your safety, stick to the maximum allowable velocity in your pipes. 


#2. Water hammer

High-velocity water flow could also cause water hammer

Water hammer is the plumbing noise you hear when you suddenly stop the valve on the fast-flowing rate of water in a pipe. 

If you experience this, you will have to do some plumbing work.



So now you have an option on how to increase GPM for sprinkler system. 

With these things that you now have learned, I’m hoping this helps. 

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How To Prevent Root Rot In Hydroponics: 3 Useful Tips

If you’re a newbie gardener who’s looking to find ways to hone your skills, you’d want to learn how to prevent root rot in hydroponics even before this problem affects your plants.

Hydroponics can be advantageous to crops in more ways than one. However, it also comes with risks of diseases, such as root rot, which can be destructive or even lethal to your plants.

Unfortunately, there are no effective methods to recover the wilted parts that were affected by the root rot once it hits your plants. The only thing you can do if you do not want this catastrophe to befall your crops is to prevent it before it happens. Read on to learn more about this subject.


What is Root Rot?

Root rot is a disease that attacks the plant roots and causes them to suffer decay. This usually happens when a lack of oxygen supply occurs in the substrate.

To give you an idea, think about plant roots that are submerged in water that only has a little oxygen in it. Over time, the plant suffocates and dies.

Aside from rot and decay, this disease also leads to the proliferation of fungi that are naturally present in the soil. These include Rhizoctonia, Alternaria, Pythium, Botrytis, Fusarium, or Phytophthora. As soon as fungi colonies start to grow, they tend to target the weakened roots and infect your precious plant babies.

Once the plant becomes infected, they won’t be able to take in what they need to grow – water, oxygen, and other nutrients. When this happens, it won’t be long before the plant dies.


What is Hydroponics?

In case you’re not aware, the term hydroponic is derived from a Latin word that means “working water”. To put it simply, hydroponics is an art that involves growing various types of plants without soil. If you’re like most people, the first thing that comes to mind when somebody talks about hydroponics would be a picture of plants with roots suspended into the water without using any type of growing medium.


Avoiding Root Rot in Hydroponic Systems

Detecting and identifying root rot can be tricky. When your plants get infected, their leaves and roots gradually wither until the whole crop itself dies from the lack of nutrients, which is a common symptom of many diseases.


What causes root rot in hydroponics?

One of the requirements in hydroponics systems is oxygen. Without it, your plants are basically on the road to death. On the other hand, lack of such is one of the major triggers for root rot, and it must be avoided at all costs.

Just like when planting in soil, you loosen up the ground so that your plants’ roots can have their required intake of oxygen. That is the case for crops grown in aqueous solutions as well. If they cannot breathe, they would not be able to grow.

Another agent for root rot is the temperature. The last thing you would want in your system are parasites that leech nutrients intended for your plants and infect the water during the process. In common terms, these fungi are called molds.

One of the best breeding grounds for these is warm and moist areas. For this reason, if the water temperature inside your reservoir is high, then you are susceptible to it. Something as minor as letting the solutions exposed to sunlight can already be a risk factor.


3 Useful Tips on How to prevent root rot in hydroponics

There is good news! Root rot in hydroponics can be prevented! Just follow these tips:

Tip#1: Use the right air pump

If you do not want root rot to affect your plants, you merely have to avoid its causes. If you need oxygen, keep the water bubbling by providing an air pump of appropriate size, and also give importance to proper ventilation in the room.


Tip #2: Maintain the temperature

The temperature should be maintained within the 70 to 80 degrees F range. Get rid of any materials that can make your system vulnerable to infections, and make sure not to disturb your crops while they are trying to grow.


Tip #3: Get rid of the rotten parts

However, if you failed in preventing the disease, then the rotten parts should be removed immediately. Cut them off as there is no chance of reviving them, and focus on the potential new growth instead. Fix your hydroponics system and eliminate the risks.


Why Give Greenhouse Gardening a Try?

Greenhouse gardening offers numerous benefits to greens aficionados who dare to take their gardening experience to the next level. Aside from acting as a shield against the effects of inclement weather, a mini, hobby, or semi-pro greenhouse can also serve as a protective layer that keeps harmful bugs and critters at bay.

What’s more, its enclosed structure allows you to control your plants’ growing conditions including the temperature, light, moisture, and ventilation of the greenhouse’s internal environment. With a controlled environment, you’ll be able to extend growing seasons and grow plants that aren’t native to your area.



No matter how well-informed you are about how to prevent root rot in hydroponics, you cannot completely eradicate the risks. Therefore, to avoid the worst-case scenario, you should be prepared to sacrifice the infected for the sake of others. While you’re at it, consider trying your hand at greenhouse gardening as well.


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