2017 Customer Appreciation BBQ

Lad Irrigation is pleased to invite its customers to the 2017 Annual Customer Appreciation BBQ!  Join us as we begin our Fall Parts & Service Program, and to secure one-day-only special pricing.  Bring in your parts lists and project ideas, and we will start the ball rolling on maintenance and improvements for next year.

Each of the three stores will hold a BBQ from 11:00 AM to 2:00 PM, on the following dates:

-Moses Lake:  Tuesday, August 22

-George:  Wednesday, August 23

-Othello:  Thursday, August 24

Please contact us for more information.  We look forward to seeing you!

Installing your own Lawn System

by Nate Hecker

By Kent Yamane, Lad Irrigation of Moses Lake (Part 1)

 

Have you ever wanted your own underground lawn sprinkler system? It’s easier than you think. Let us at Lad Irrigation help you get started.

Homeowner/Residential Systems

Providing you with professional advice and planning assistance, this sprinkler design service covers all the bases with a complete set of sprinkler system plans to help you install your lawn irrigation system with confidence. Your computer drawn design package includes an itemized shopping list of everything you need to complete the project. And if you have a question before, during or after installation, call your local Lad Irrigation dealer.

What You Provide:

1Using this Design Service first involves gathering some important information about your water system and yard. Take a few simple measurements and record the information on a piece of paper. You will be asked to provide: Water available for your irrigation system (water pressure, meter size, service line size) and a sketch and accurate dimensions of your property.) We can also help you with this information.

 

What You Get Back2

You will receive a detailed, computer-drawn plan specifying the location of irrigation system components such as valves, lines and sprinklers.

Spray patterns for each sprinkler head are also identified for each lawn area. In addition, the design package provides you with a list of supplies needed to complete your installation.

 

 

 

So let’s get started;

To start the process you will need to get the following: The first is your technical and personal information. The second is paper to draw a sketch of your yard. Gather the information requested below in steps 1 through 5. This determines the number and types of sprinkler heads you can operate on each valve zone.

 

1) What Is Your Water Pressure?

3Screw a pressure gauge onto an unregulated outside faucet. Make sure no water is running anywhere inside or outside your house. Turn on the faucet with the gauge attached. The gauge shows your water pressure in pounds per square inch (psi).

Record: Pounds per square inch (psi)

 

 

2) What Is Your Water Meter Size?

4The meter size ( 5/8″,3/4″ or 1″) is usually stamped on the outside of the meter. If you can’t find the size, just call the water utility company and ask for that information.

Record: Write the meter size (5/8″,3/4″ or 1″)

 

 

 

 

3) How Large Is Your Service Line?

5Find the pipe that runs from the water meter to your house. Wrap a piece of string around the pipe, mark it, then measure how much string it took to go around the pipe. Check your string length on the table below to find your service line size.

Record: 3/4″, 1″ or 1 1/4″ on your worksheet

For example, if your string measures 4″ and you have galvanized pipe, your service line is 1 inch.

 

Determining Size of Service Line:

Capture

4) What Is Your Home’s Water Flow?

6Get a measurable container, like a 5 gallon bucket, make sure no other water is running in or outside the house, turn the faucet on all the way and time how long it takes to fill the container.

Record: Gallons per minute (GPM)

Determine gallons per minute (GPM) with the following formula:

7

 

5) Sketch Your Yard

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Divide your lot into sections such as front lawn, side lawn, flower beds, slopes, etc., and label all those areas you want watered. Also be sure to include the house, driveway and sidewalks. If you have special watering preference such as bubblers in planting beds or a drip irrigation zone, note that on your drawing as well.

IMPORTANT: The computerized plan you receive will only be as accurate as your drawing.

Next, we will go over how to install your lawn system.

Rebuilding an ineffective pump station, a series:

Article Seven, by Douglas Muscott CID, Lad Irrigation Co

1

After the concrete has cured properly, the turbine pumps are set into the wet wells and connected to the discharge manifold. The filter manifold was fabricated in our fabrication shop using the cad drawings as the guide. Here you see the job starting to take final shape.

 

2

Above is a photo of the partially assembled pump station looking south. In the foreground is the concrete waterbox with our shop fabricated stainless steel screen installed. The water enters the structure on the left side, flows across the screen in a self-cleaning action and the return flow exits the structure on the right side of the photo. In the background are the two pumps with a spare wet well between them for future addition of capacity if needed.

Below is an elevation view looking west of the semi-assembled pump station. The discharge assembly is on temporary blocking while we finalize the leveling and locate the valve locations to be located on the clean water manifold.

3

4

 

In this view looking into the waterbox we see the stainless screen with the gasket material on the sides to protect the clean water chamber. The pump pad is on the left side of the photo. The water enters the structure at the near end of the photo and what is not pumped into the system overflows into the chamber at the far end of the photo.

 

Rebuilding an ineffective pump station, a series:

Article Six, by Douglas Muscott CID, Lad Irrigation Co

Today we poured the concrete pump pad and are opening up the ditch for the power conduit from the transformers to the meter base. We are putting a broom finish so the pad will be non-skid. All conduits and pipes are in and ready to set the pumps and discharge manifold.

1

 

Here you can see the three 16” well casing wet wells for the turbine pumps to set in. The 4” pipe is for a level control transducer that will connect to the VFD and prevent the pumps from over pumping the concrete water control structure. There are three small conduits, two for transducer conductors and one for area lighting for night operation.

2

 

Here is an overall view looking west of the waterbox, electrical control center and newly finished pump pad. After proper curing of the concrete we will set the prefabricated discharge manifold on the pad and support with tie-downs to weld plates poured into the concrete. The two outside wet wills will be cut off and flanged for turbine pump mounting and support.

3

 

This photo shows the water inlet from the weir blade of the water company to the waterbox supply pipe which is 14” well casing. The concrete crew formed new walls around the inlet structure and we will cut the pipe flush with the floor and weld on a rebar trash rack to keep large trash out of the waterbox. 4

Rebuilding an ineffective pump station, a series:

Article Five, by Douglas Muscott CID, Lad Irrigation Co

The pipelines for the water inlet and return flow are now connected and we are ready to backfill the entire pump structure and compact the lifts of fill in preparation for concrete. This was a complex operation involving trucking the saved fill material back to the site and placing it where needed with the 590 excavator seen in the photos below. We also used the vibratory compactor attached to the excavator to make sure we have no dangerous settling after concrete is poured and water is turned on.

1

We have loaded the dump truck with clean fill material we saved from our original demolition. Our operator is placing it carefully into the bottom of the original excavation so we can compact it properly. We are taking extreme care not to come in contact with the existing steel pump structure and cause damage to our newly poured concrete box. Jack is shoveling fresh fill into places we will pack with our hand compactor.  

2

 

With the vibratory compactor attached to the excavator, we can now pack the lifts of soil we have placed into the original excavation. This is a multi-step operation and we change between the three foot bucket and the “Hoe Pack” several times as we prepare the site for our concrete pump pad and electrical control center. The closest vertical pipe will house a 75 HP turbine pump and the far pipe will house a 50 HP turbine pump. The 4” black one will house a level control transducer. The bucket covers the return flow air vent.

3

Here we see the Hoe-pack compacting the pad site while Jack uses the hand compactor to pack between the vertical pump chamber pipes. The center vertical pipe will be a spare for now, providing a home for a backup pump if the customer chooses to add one at a later date. The concrete pad will be 18 feet wide and 22 feet long so he Hoe-pack is compacting the entire site which was measured out and corner pinned to define the needed work area.

4

The day turned very foggy with the temperature never above 32 degrees. Here Jack is holding the Lazerplane target, giving Mark a tone signal so he can level the pad site exactly to the sub grade needed for the concrete pad to set on. The excess compacted soil will be placed on the north side of the pumping structure and compacted around the inlet and return flow pipes and give Jack a firm footing to pour the concrete structures required there.

Below we see the overall view of construction standing on the east side of the site looking to the west. The pump pad sub grade is accurately set with our Lazerplane and the perimeter forms are set with four inches of pad fall from the waterbox to the south edge of the pad. Rick is running our hand compactor on the west side of the site which is where the return flow water will go to its appropriate pipeline. As will show in future articles, some of these pipelines are two way which complicates construction of the pipefitting down the road.

5

The electrical controls are prefabricated in our shop and pre wired by our licensed electricians. Looking from left to right we see the 200 amp meter base with 3” conduit incoming. Next to the meter base is our 5 KVA transformer to give 110V single phase power for convenience and lighting. Then is an empty space for a future pump controller if the customer decides to add the spare pump at a later date. Then there is the NEMA #3 pump control panel for the 50 HP Turbine pump which will be controlled by the white box which is a 75 HP VFD that will operate on a pressure transducer to maintain the customer defined set point for the hydraulic system.

Rebuilding an Ineffective Pump Station, a series:

Article Four, by Douglas Muscott CID, Lad Irrigation Co

Pump station design/build requires a blueprint of what you are trying to accomplish. This segment deals with how we develop our construction plans and our procedures for building a project. Following is a set of CAD drawings that outline our vision for this pump station. Articles two and three were carried out with these plans in hand as they were developed after taking survey shots and logging them and a pre-construction meeting with the builders and the project owners. Following is our vision of this project.

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This page shows the plan view of our vision of what the new pump station will look like. We do our design work on CAD and this allows us to accurately scale the components and make sure our ideas can come true in the real world.

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Page two shows the elevation view of our proposed pump station and allows us to make sure the water will enter and exit the pump structure as we plan. This is very critical and a lot of math is involved in this phase to verify the flow and quantity of water we need for our system.

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Page three shows the pump pad layout for the electrical conduits and other items to be built into the concrete poured pump support structure. All this type of construction must be seen in the mind’s eye of the engineer designing the pump station as remodeling corrections into concrete is time consuming and expensive.

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Page four shows the exact construction of the electrical controls and how they are to be built and wired into the system. This pump station will be fully automated when complete allowing the operator to simply change valves with the pumps automatically adapting to the requirement with a pressure transducer and a VFD.

Rebuilding an ineffective pump station, a series:

Article Three, by Douglas Muscott CID, Lad Irrigation Co

The concrete pumping structure in now poured and the steel fabricated turbine pump structure is installed and we are now ready for pump pad site preparation. Before we can backfill the structure and prepare the pad sub grade we must connect the pipelines that we cannot access once the backfilling and concrete are poured. The electrical controls will be all assembled and pre wired and set into position before the concrete pad is poured and all conduits must be in place.

 

Boom and Weilding Trucks

This view shows our boom truck and welding truck on the jobsite. The three pump chambers are the red primer vertical pipes in front of the concrete box. The black pipe between the two left verticals is the level transducer sensing pipe. In the background the ditch from the water company can be seen and water delivery takes place from the far side of the photo. In the foreground you can see the pressurized pipes that will connect to the discharge manifold.

 

Water Delivery of Pump Box

This view shows the water delivery side of the pump box. The far pipe is the inlet pipe from the supply ditch and is 14” heavy wall steel pipe. If you look closely you can see a knockout for another pipe to supply the box. This will be part of the two way pipeline system and connect to other pipes. The near pipe is 8” heavy wall pipe and it returns water not pumped, to be captured and re-used at another pump site. All our field fabrication is welded with the wire feed welder seen at the far left of the photo.

 

Delivery Side Looking Towards the Pump

This view is from the delivery side of the box looking toward the pump chambers and the incoming power line. The pipelines that will connect to the pressurized clean water manifold can be seen in the mid-background. The black vertical pipe at the far right is an air vent for the return flow pipeline. The electrical controls will be placed at the far right of the photo as the finished pump pad will extend four feet to the right of the concrete water box.

 

 

This project is now ready for backfill on the pump pad side of the structure. We will bring our excavator in with a vibratory hoe-pack and replace the soil removed and trucked out. The finish grade will be established and prepared for the setting of the electrical controls and in-pad electrical conduits. We will then pour and finish the pad with appropriate pour-in plates to support the discharge filters and manifold.

Rebuilding an ineffective pump station, a series:

Article Two, by Douglas Muscott CID, Lad Irrigation Co

Following the decision by the customer to replace the existing pumping plant with a new state of the art installation, we began the site preparation by demolishing the existing installation. We have new construction plans in place and after calling for a power disconnect from the power provider we prepared the site for the first concrete pour, the new concrete pumping structure.

 

Mechanical and Electrical Demolition

With the mechanical and electrical demolition done, we begin to prepare the site with our excavator. Note the old meter pole in the foreground. It is going away as the new electrical service will be underground to the new electric meter. We have the lazerplane all set up as the grades have all been determined by the cad drawings generated from our preconstruction meeting. We are leaving the existing pressure pipelines pending completion of the new pump pad at which time they will be excavated and re-plumbed to the new discharge manifold.

 

Removal of Old Pipe

All pipe previously connected to the old pump station is removed to give us a “clean floor” for the new construction. The right tool for the job, in this case a new excavator with a lot of power makes short work of this part of the site preparation. The existing concrete box shown here is removed as well to make way for the nine foot deep hole that the new concrete waterbox will be built in.

 

Trucking the Spoil from the Excavation

The site has very tight working clearances so we have to truck all the spoil from the excavation away from the site to allow access for the trades following to build the different phases of the project. Here we are loading the truck with dirt removed from our nine foot deep hole and moving it away so it does not impede access to the next phase of construction.

 

 

We are now ready to move to the next step of construction which is the pouring on the monolithic concrete pump structure and the setting of the fabricated steel wet well pump structure. After the concrete is poured, the pipefitters and crane operators will deliver and set the structure and install the inlet and outlet of the pump station.

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