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Rural Water Supply Operations Seminar
Rural Water Supply Operations Seminar

Water Supply Officer Seminar
Water Supply Officer Seminar

Relay Pumping With Large Diameter Hose
Relay Pumping With Large Diameter Hose

Dry Fire Hydrants Seminar
Dry Fire Hydrants Seminar

Dry Fire Hydrant Designs and Installations
Dry Fire Hydrant Designs and Installations

Suction Strainer Flow Test Project:Test Results

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 Welcome to the Official Website for GBW Associates, LLC.

    

GotBigWater is the official website of GBW Associates, LLC, a privately owned training, consulting, and design firm located in Westminster, Maryland. Our specialty is water supply for public and private fire protection. We at GBW Associates, LLC are known for our training programs, our consulting services, our dry hydrants, and our testing services. Over the years, we have completed projects in over 41 different states and Canada ranging from rural water supply and incident command seminars to ISO water supply assessments to community master planning.

Use the menu at the left to take a look at our services and to contact us.  Be sure to check out the News Archive and  Big Water Information sections for a whole bunch of information on water supply delivery operations.

 Scroll down to see our recent activities, upcoming events, and website updates.

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Be sure to join the Members Area to discuss water supply issues, view our document library, and receive announcement notices concerning our website and our services- it is FREE!

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Upcoming Seminars, Courses, and Drills

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  Maine Oregon  
       
       
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What's on Your Tanker #51 - Soft-Side Dump Chutes

President Mark Davis, April 11

During our 2012 seminar in Amenia, New York we came across an interesting dump chute design on an older, 3200-gallon tanker out of the Stanford (NY) Fire District. The side dump chutes were soft-sided; made of "dump tank-like" material. We really have not seen another set-up like this; it worked pretty well and the rig did a great job of hauling water during the 2-hour drill. The design did not ... (Full Story & Photos)

The soft-sided dump chute seemed to work pretty well off-loading the 3200-gallons carried on this tanker.
The soft-sided dump chute seemed to work pretty well off-loading the 3200-gallons carried on this tanker.

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The suction elbow can make big a difference in performance when setting up portable dump tanks either to the front or rear of a pumper.
The suction elbow can make big a difference in performance when setting up portable dump tanks either to the front or rear of a pumper.

What's on Your Engine #16 - Suction Elbow

President Mark Davis, April 04

The use of suction elbows on side suction inlets is gaining popularity in those areas of the country where folks depend on drafting to support their firefighting operations. Several manufacturers make a suction elbow and we certainly recommend suction elbow use...especially when using portable dump tanks positioned in front of...or to the rear of the pumper. For the two brands that we tested back ... (Full Story & Photos)

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Drafting Tip #22 - Floating Strainer Pins/Slides

President Mark Davis, March 28

Another simple item that can make or break a quick drafting set-up. Many of the floating suction strainer manufacturers use some type of pin or slide bar lock to secure the strainer in the float during storage. On some brands, it you forget to remove the pin or move the slide bar then there is a good chance that the strainer and float will come out of the water once the suction hose is full of water ... (Full Story & Photos)

The set-up was fast....but the slide locks on the float were forgotten during deployment and now the strainer is sucking air on the one corner.  Gotta bring that back to shore and fix it.
The set-up was fast....but the slide locks on the float were forgotten during deployment and now the strainer is sucking air on the one corner. Gotta bring that back to shore and fix it.

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McClean Engine 1201 (1500 gpm) drafts for the first time using the new bridge-mount DFH.
McClean Engine 1201 (1500 gpm) drafts for the first time using the new bridge-mount DFH.

Dry Hydrant Design #63 - Bridge-Mount Installation - McClean, NY

President Mark Davis, March 21

This week we completed the installation of one of our bridge-mount dry fire hydrants on a bridge over Fall Creek in McClean, New York. The project was funded by the McLean Fire District and used our angle-mount bracket system. The lift at the bridge was pretty high (16-feet) but the water supply was abundant and usable. A 6-inch ETT brand female dry hydrant head and a 6-inch ETT stream strainer ... (Full Story & Photos)

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What's On Your Engine #15 - Twin Those Lines

President Mark Davis, March 14

Building on our last news story, "What's On Your Engine #14", one way to overcome the flow restriction of asmaller discharge when trying to support higher flows in an LDH line is to twin a couple of smaller lines into the larger line. A variety of appliances will work...you just need to get those lines combining into the single, larger line. The pumper shown in this photo from our 2018 seminar ... (Full Story & Photos)

Supporting an LDH line without a high-flow discharge.
Supporting an LDH line without a high-flow discharge.

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Know ahead of time the flow limitations of your discharges.
Know ahead of time the flow limitations of your discharges.

What's on Your Engine #14 - More About LDH Discharges

President Mark Davis, March 07

Building on last week's News Story, here is a good example of getting yourself into a jam by forgetting the flow limitation of your engine's discharges. The pumpers at this event were trying to support a 1,000 gpm operation at the attack pumper using a relay pumper over a 2000-ft distance of 5-inch LDH. The source had plenty of available water....that was never the issue. Elevation change was a ... (Full Story & Photos)

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What's On Your Engine Company #13 - Discharge Adaptors - Be Careful

President Mark Davis, February 29

There is nothing worse than trying to dig through a milk crate of adaptors in a back compartment on a rainy night trying to find the 2-1/2" to 5" adaptor. We get that. However, if you choose to carry that adaptor connected to a 2-1/2" or 3" discharge then make sure everyone knows the flow limitations of that discharge. The adapter shown in this photo provides a number of options - awesome, no digging ... (Full Story & Photos)

The adaptor does not make this a high-flow discharge.
The adaptor does not make this a high-flow discharge.

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Hmmm....will this retrofit clear the top of the dump tank frame. Something to evaluate before installation.
Hmmm....will this retrofit clear the top of the dump tank frame. Something to evaluate before installation.

What's On Your Tanker #50 - Rear Dump Retrofits

President Mark Davis, February 22

Nothing overly exciting hear - unless of course it doesn't work. We spoke about this issue before, when choosing to retrofit a rear dump valve/chute with a swiveling version, make sure that new chute will clear the top of your local dump tank frames. Remember that there is no standard on the height of a dump tank and there is no standard on the location of a dump chute. Many dump tanks come with ... (Full Story & Photos)

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Your questions and feedback are important to us!  If you have a question about water supply or pumps or FD stuff in general, join our Members area (for free) to post your inquiry. We will provide our thoughts and perhaps other folks in the field will provide theirs also. 

Also - be sure to sign the guest book if this is your first time here - guestbook.

 


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